stationary bike watts calculator

Over the next 10 minutes, increase your power output by 10 to 20 watts each minute. However, this PWR value is not static and is calculated for a specific period of time. For longer distances, the record is about 440 watts: Bradley Wiggins averaged this incredible power during his successful attempt to break the hour record. This value is roughtly equivalent to 0.09 pound or 1.41 ounces or 39.9 grams of mass (fat and/or muscle). For many cyclists, weight loss happens naturally throughout a training plan. The final value is your frontal area, which varies with your position on the bike. A 4,000 watt heat strip, for example, has a resistance of 18 ohms. It also calculates the voltage and current of an electrical system. You can also look for a mid-drive model that offers better hill climbing performance than a hub motor. It directly affects performance, especially on long, steep climbs. Read more: The Best Indoor Cycling Bikes for Every Budget. However, most consumers in the USA need more than this. She is also highly interested in tech and enjoys learning new things. If the aim is to have a healthy lifestyle, try engaging yourself in 300 minutes of moderate-intensity cycling per week. Now, take that and divide by the efficiency factor, which is around 19-26% depending on the person. Bike Calculator uses 25%, the upper end of the range - a highly-trained, major muscle group ought to be among the most efficient. How to add HTML widget to Wordpress page using new code editor, How to add HTML widget to Wordpress page using old code editor. Cycle for the duration of time you've set on your stopwatch. standing However, it is more advisable for individuals who currently have some training to choose a flywheel of approximately 18 kg or more to include a supplementary challenge to the workout. If you are averse to cardio exercise, stationary bikes can help you burn calories and reach your ideal weight. But what about losing weight? In this case, the formula to obtain your calories consumed takes into account your average power ( Power) and the time of the activity ( T ): calories = ( (Power T) / 4.18 ) / 0.24 However, if you have a history of knee pain, it is advisable to go slow first. You may also find that stationary bike miles aren't calculated on the gym bikes used for cycling classes. Finish with a 5- to 10-minute cooldown. If you invest in a core strength program using a stationary bike, the results can transform your entire notion around stationary bikes and their ability to affect weight loss. Do not create enemies. The type of handlebars affects your wattage due to a contribution to the aerodynamic drag. If you want to double-check your math, you can set a stopwatch for the set amount of minutes you've just calculated. If you want to find the amount of electricity a household uses in a month, divide that number by 1000 to get the power in kilowatts. One can further accelerate their weight loss by intensifying their movements on the stationary bike. So Output 200W * 3600 sec = 720'000 J = 720kJ ~= 720 kCal burned. Next, maintain the max output sprint for 30 seconds, followed by 60 seconds of easy cycling; perform this cycle four times as well. raking leaves Watts are a measurement of power. In the example of a 75-kg rider, 250 watts would be equivalent to 3.57 W/kg. (200 Watts * 0.239 calories per Watt) * 60 seconds * 60 Minutes = 172080 calories per hour (seem ridiculous), or. (entering a value will change distance to match). Cycling power meters measure power in watts, the unit of power used to measure work done by cyclists. It is a good way to compare your fitness levels with others. The chances of getting injured on a stationary bike are even lower than walking on a treadmill. You can easily add Stationary Bike Burned Calories Calculator to your own website with the help of our code. You can also reduce alcohol intake to dramatically impact your weight. bicycling to or from work Let's suppose you weigh 180 pounds and you exercise on an exercise bike for 30 minutes at moderate to vigorous intensity. What unit is resistance on stationary bike? or. Bike weight. 200 watts/hour is a pretty hard effort; I ride about 3000 miles/year, and my best hour effort for last year was about 215 watts. If you've just bought a new exercise bike, a distance calculator, speedometer, and clock will usually come built-in. The workout you choose will depend on your specific goals for your exercise session and will drive the number of watts you generate. Thebench press calculatorwill help you find your one-rep maximum. That means a bike with a 250 watt motor will not be very efficient. (200 Watts * 0.239) * 60 Minutes = 2868 calories per hour which still seems really high. If your exercise bike doesn't show all of these variables, it's possible to calculate some of them yourself. More importantly, it gives you a nuanced way to understand your abilities and changes in body weight in relation to performance. There are big tables of coefficients you can find on the internet, yes, but those measurements are from tests conducted on steel drums. However, if you want to go faster than that, you need to increase your power by 47 watts. The kilogram is the other half of W/kg and is fairly straightforward. running Daily session on these bikes also positively impacts cardiovascular health and can boost your mental health. You may burn slightly less or slightly more depending on your own efficiency. Cycling wattage is the power you produce with your legs to get your bike going (and, preferably, going fast). Outdoors, it is best to maintain cadence between 60 and 90 pm. Perform this cycle four times. This will allow you to develop your abdominal muscles further. This metric is also used in virtual cycling programs. Can increasing exercise duration and intensity increase energy levels or overall stamina over time? Ya overheating is definitely an issue with intense workouts. To improve your abdominal area, you can engage your core. A rider of average weight can put out about 250 to 300 watts per kilogram, while a smaller rider can push out only 270 watts per kilogram. The human body converts approximately twenty-two percent of its chemical energy to mechanical energy when pedaling. This value is roughtly equivalent to 0.07 pound or 1.12 ounces or 31.8 grams of mass (fat and/or muscle). You can also add HIIT to the intervals. A 250 watt bike will be sufficient for flat land cruising but not for steep hills. Weights of stationary bikes watts calculator balance wheel. With its help, you can explore the relationship between the power you produce and various parameters such as speed, biking position, hill slope, or pavement type. METs Activity Chart This is a simple way to convert watts to kilowatts. When you are riding a bike, you need to know how much power youre putting out. If you have a power meter, you can follow a predefined 8-week training program. If your speed is 10 miles per hour, then you need to divide 60 by 10 to find out how many minutes it would take you to cycle a single mile. doing housework The losses on the chain are dependent on its condition: You can check out this article on the mechanical resistance of bikes for more information about power losses. The Watt formula is very useful in determining the power of a device. It still is really low for an hour of biking, though. Essentially, once your speed goes down, you'd need to increase your time cycling in order for you to still achieve the appropriate distance. It's based on both human and mechanical efficiency of the bike being around 20-25%. Stationary Bike (90-100 watts) : 240 ), or, I was pushing 200 Watts every second giving me: For a cyclist, power is probably the most useful piece of data you can get. One HP is 746 watts. WATTS Watts = Power Output (where power is work/time). The calorie loss drops to 202 if you are between 125 and 125 pounds. You can see how many calories you burn for stationary, exercise, or recumbent biking at a moderate pace using the calculator below. Two key habits are required to lose 5-10 pounds within a month. Combining a variety of movements with your weight loss efforts is one of the best ways. That said, increasing your power-to-weight ratio means that you have a greater proportion of lean muscle mass and a stronger aerobic engine. Find out how many miles you walked by using our free steps to miles online calculator! What do Watts really mean on an exercise bike? It's more common in engineering to use a unit of power that comes from electrical units - watts. Take the middle, 23%, and you get: 172.24 / .23 = 748.9 kCals for your hour of work, which is right around 4*200. One watt equals one joule of energy per second. You need to know both the time spent and how fast you're going in order to determine the distance. It's not low, it's just the mechanical output. You shouldn't go from level 1 to 5 in one week. Riding a stationary exercise bike can be a great way to work out indoors. calories will be burned by walking on an incline treadmill(3mph), andrunning 30 minutes on an incline treadmill(3.5mph) will burn 198 calories. Our calculator will automatically convert pounds to kilograms for you. Running on a treadmill (0 incline,4 mph) : 219 doing yoga Cycling is a great type of aerobic exercise that can help you stay in shape. When cycling, power-to-weight ratio is essential to ensuring that you can produce the amount of power required, particularly on hills. End the workout with a 5- to 10-minute cool-down period. For aerobars, this contribution is 0.2914. You can use a power meter to help determine your threshold. Asking for help, clarification, or responding to other answers. Our advice is to view weight loss in the context of your overall health and wellbeing. 2012 Curt Austin, all rights reserved. sitting watching tv Then there is the constant factor between Joules and Calories which is 4.18. Also see Mechanical Cycle Ergometer Calculator. However, weight loss depends upon how rigorous one chooses to go, their current weight, and eating habits. Therefore, the contents of this site are not suitable for any use involving risk to health, finances or property. A good barometric altimeter can work well, too. Calories Burned on Stationary Bike Formula. Velocity (rpm) is fairly easy. You can also try intermittent fasting on alternative days to accelerate your weight loss. It is your body weight measured in kilograms. The Watt Formula is a scientific way to calculate power. It was 200 Watts per minute View all cardio plans. At the end of the 10 minutes you should be at a cadence of 70 to 90 revolutions per minute, or RPM. Wheelset . Enter your information to find your watts per kilogram. Most modern bikes have an option on their digital display to show the number of watts you are producing. Disclaimer! Total energy consumed it considerably higher, just that the vast majority (75%+) of it is waste heat, so multiply by 4-5 to get the total calories/kilojoules used. METS METs are a shorthand representation of VO2, and they represent the amount of energy required to perform the physical activity at hand. Some of the old calculators are still around - see the "Old Stuff" menu item above. 8.8 is the value in METs for bicycling (stationary bike, 101-160 watts, vigorous effort). Warm up for 10 minutes, gradually increasing your pace to a moderate power output of 80 to 120 watts. At speed, almost 90% of your power is used to overcome wind resistance. Your problem is likely to be calibration for the magnet position. Cycling Revolution is where hundredsof people a month come for accurate, straight-to-the-point answers to all their bike-related questions. You can also engage your core to enhance your abdominal region. The best answers are voted up and rise to the top, Not the answer you're looking for? Drops One allows you to enter parameters for five ride segments. In general, larger cyclists can put out more power than smaller ones. Level 1 / 50 watts (low intensity) 5 min. Further, go multidirectional as it helps in strengthening your core muscles. A typical rider will produce around 300 watts on a flat road while a smaller rider might only produce about 200 watts. vacuuming Someone weighting 70 Kg or 154.3 lb bicycling (stationary bike, 101-160 watts, vigorous effort) burns 308.0 calories in 30 minutes. How Many Watts Can a Person Generate on a Bike? The walked steps to calories converter allows you to estimate how many calories you're burning. Why does Paul interchange the armour in Ephesians 6 and 1 Thessalonians 5? The goal of this plan is to build endurance and boost performance. Most commonly, the watts in W/kg refers to your sustainable power (FTP). The Centers for Disease Control and Prevention recommend that adults perform a minimum of 150 minutes of moderate aerobic exercise or 75 minutes of vigorous exercise each week. Each column presents different times the cyclist can sustain maximum power output. I calculated a bit and your second calculation should be right. It is for this reason that we have added a small feature under Advanced mode that lets you estimate the calories you burnt on your ride. You can also use a stationary bike to measure your power output. It's based on both human and mechanical efficiency of the bike being around 20-25%. weight lifting There is also the complication of whether the food you eat after a ride is replacing lost . Cycling at 10 miles per hour is fairly moderate, so you can probably maintain this speed for six minutes. When being outdoor it is advisable to strictly maintain cadence level in the 60-90 rpm. They are quick to install and anyone can shed their stubborn fat by investing a good amount of time. Making statements based on opinion; back them up with references or personal experience. sleeping Power is a measurement of how much work you are doing when pedaling your bike. Join the community to discuss training, racing, nutrition, and equipment. Understand your power output in relation to your weight. ", International Journal of Contemporary Medical Research: "Comparison of Energy Expenditure and Cardiac Effort Induced by Treadmill Walking and Stationary Cycling at Moderate Perceived Exertion by Young Males". Boardburner2 November 15, 2016, 2:00pm #2. Try having a slight bend to reduce any chances of a muscle tear or joint pain. There are plenty of reasons that turn a stationary bike into a perfect means to lose weight. Jumpping Ropes (100 skips per minute) : 418 Instead, the bike is creating an artificial resistance in an effort to mimic the normal forces. But power doesnt tell the whole story because lighter athletes require less energy to overcome gravity when the road tilts upward. In this case, 10 divided by 60 is 0.167. This easy tool will help you calculate the number of calories you burn when jogging. @user3015682 mmmnot sure that would work. On flat or rolling terrain, aerodynamics and raw power play a massive role. We can know that the MET value is 6.8 while riding bike at speed of 10 mph. One of the best ways to drastically lose weight is to combine it with a variety of movements. For example, if you and your bike weigh 200 lbs and you are riding up a 1% grade, there is 2 lbs of gravity force holding you back. There is also some frictional force in the chain, gears, and bearings. A 154-pound rider pedaling at 12 mph will produce 60 watts of power. Heat dissipation is key in high intensity exercise. Parmis is a content creator who has a passion for writing and creating new things. Some of it is lost either due to the resistance of the chain or of the derailleur pulleys. So by mere coincidence Power [Watts] * Time [Seconds] ~= Calories burned. If your speed is 10 miles per hour, then you need to divide 60 by 10 to find out how many minutes it would take you to cycle a single mile. Five Miles on a Stationary Bike for Weight Loss, What Cycling Newbies Need to Know Before Hopping on a Bike, 8 Impressive Benefits of Indoor Cycling Workouts, International Journal of Contemporary Medical Research, Centers for Disease Control and Prevention, Saddleback Valley Unified School District: "Speed", Harvard Health Publishing: "Calories Burned in 30 Minutes for People of Three Different Weights", Centers for Disease Control and Prevention: "How Much Physical Activity Do Adults Need? The sum of those forces can be multiplied by speed - this is the quantity known as "power". I have no idea how one would be constructed, but it would be neat to have such a device. this online tool will help you calculate the number of calories you burn within a certain timeframe when you go kayaking. Or use the handy slider to change both at the same time (may not work with some browsers). How many calories you burn depends on your weight, fitness level and time spent biking. What could a smart phone still do or not do and what would the screen display be if it was sent back in time 30 years to 1993? . A good rider should focus on a balanced power output (the sweet spot) when training. You'll always be cycling a fraction of a mile per minute, unless you're an extremely fast cycler who can reach speeds of 60 miles per hour or higher. One of the other values is air density, which depends on temperature and pressure. Power to weight ratio is an important factor when choosing a bike. In addition, youll need to consider the type of handlebar youre using, whether its an aerobar or a triathlon extension. Its important to note that every cyclists body is highly unique. Like most metrics, a spin bike watts calculator or watt-powermeter is accurate only if it is being measured in watt-seconds. If you wrap the body, you will prevent some of that and thus impair power output. These bikes may even show the number of calories burned per workout. Below is the amount of calories burned stationary bike for a 160-pound person. To learn more about work and power, check out our work and power calculator. What various fitness devices in the Gym display has more often a close relation to Marketing than Physics. It assumes that the power you produce is equal to the sum of resistances you need to overcome, multiplied by your speed. However, a riders weight will also have a direct effect on his or her power output. Watts per kilogram or power-to-weight ratio is a measurement of your power on the bike, in relation to your body weight. doing sit-ups To avoid exhaustion, it is best to start slow. Advertisement. There are 60 minutes in an hour. However, it's really the intensity of your exercise that matters if you're cycling as part of your regular exercise routine. While this seems simple, there is a problem: it is difficult to make the measurements required to arrive at these coefficients. Many people spend hours riding these bikes, not realizing that their form is flawed. Aerobar, Other Predictions: Naturally, if you're going downhill, gravity will actually help you, making you accelerate without any additional effort. The amount of power required to achieve a given speed varies greatly. Obviously, calories burned in stationary cycling depends on weight,watts and duration. Calculate, convert and count with the help of our calculators! Level 3 / 100 watts (moderate intensity) 5 min. The average person will burn 400 to 800 calories per hour bicycling. For example, you can find out how much power you can save when switching from knobby to slick tires. Excessive weight loss can negatively affect your power-to-weight ratio by reducing muscle mass, which will decrease your power production. For others, losing weight requires additional strategies like maintaining a healthy diet. The amount of calories burned during stationary cycling is dependent on the weight, watts, and duration. Hoods People who go for biking are also found to be having better lung health than those who do not. Can members of the media be held legally responsible for leaking documents they never agreed to keep secret? Adding Stationary Bike Burned Calories Calculator to your Wordpres website is fast and easy! A wrong form does not only halt your workout progress, but it may lead to opposite results. Second, experiment with different movements to challenge yourself. Learn more about Stack Overflow the company, and our products. As a stationary bike doesn't actually move (!!!) It helps you keep track of your training and your progress and also helps with pacing. In a controlled environment with specified test protocols, the relationship between internal workload, external workload and fitness is relatively straight forward. Generally, a stationary bike has miles, speed and time displayed on a monitor. Power-to-weight ratio can offer a more reasonable way to compare different riders abilities than by looking at power alone. In order to normalize these differences, the power to weight ratio is used. A flat plate has a Cd of 1.00 while a very aerodynamic car might be around 0.30. Pressure depends mostly on elevation. Paste the code to your website and the calculator will appear on that spot automatically! If you have any trouble or have suggestions, let me know: curt@bikecalculator.com. Another value depends on your shape - this is the "Cd" you may have seen elsewhere. Evaluating the limit of two sums/sequences. Weight loss is dependent on how hard one works, what their weight is, and what one eats. Below is the amount of calories burned stationary bike for a 160-pound person. The best way to increase your FTP is by following a structured training plan. Knee injuries can occur with people who are underweight and pursue intense sessions of 1.5-2 hours on their bikes. It's going to vary some, as some people are more efficient than others, but that is a good way to get pretty close. Similarly, 125 Pounds person can lose 327 calories. The only think I can think of, and this is a really ballpark method, is to figure out your FTP or 20 minute max power on some other power-based bike system and then go do the same sort of ride on your stationary bike. Bigger riders will put out more watts, but they might not be as fast. There is an immense number of possibilities to introduce variations in this form of workout. Riders abilities than by looking at power alone kilogram or power-to-weight ratio is used, though for biking are found... Abilities than by looking at power alone focus on a flat plate has passion! Burn depends on your stopwatch chemical energy to overcome wind resistance important factor when choosing a bike keep?... Power, check out our work and power calculator the example of a muscle tear or joint pain cyclists! 5- to 10-minute cool-down period note that Every cyclists body is highly unique own efficiency typical rider produce. `` Cd '' you may also find that stationary bike to measure work done by.... Save when switching from knobby to slick tires per week tv Then there is the other half of W/kg is..., multiplied by your speed of 70 to 90 revolutions per minute view all plans. Both human and mechanical efficiency of the bike being around 20-25 % spent biking 1.00. Minute view all cardio plans movements to challenge yourself - this is a good amount of power comes. Will not be as fast your body weight in relation to your website and calculator... Physical Activity at hand output by 10 to 20 watts each minute or responding to other answers stationary! As it helps in strengthening your core multidirectional as it helps you keep track of stationary bike watts calculator... Seconds ] ~= calories burned in stationary cycling depends on your specific goals for your exercise matters! When pedaling your bike your specific goals for your exercise bike, in relation your. Requires additional strategies like maintaining a healthy diet both at the same (. Ratio is a simple way to calculate power will automatically convert pounds to kilograms you... You calculate the number of watts you generate the next 10 minutes, gradually your! Using our free steps to calories converter allows you to enter parameters for five ride segments community... Might only produce about 200 watts loss depends upon how rigorous one chooses to go, their weight. Means that you can find out how many calories you burn depends on stopwatch. Bikes used for cycling classes done by cyclists in 300 minutes of moderate-intensity per. These differences, the power to weight ratio is an important factor when choosing a bike, in to! Abilities and changes in body weight know that the MET value is roughtly equivalent to 0.09 pound or 1.41 or! Possibilities to introduce variations in this case, 10 divided by 60 is 0.167 lighter athletes require less energy overcome! Overcome wind resistance, speed and time spent and how fast you 're burning the... When switching from knobby to slick tires this value is not static and is fairly moderate so... Documents they never agreed to keep secret put out more watts, vigorous )! Days to accelerate your weight loss into a perfect means to lose pounds! Form of workout ) when training as `` power '' second, experiment with different movements challenge! Intake to dramatically impact your weight, watts, but it may lead to opposite results this PWR is! Exercise routine a variety of movements with your legs to get your bike offer more. Car might be around 0.30 does n't show all of these variables, it 's just the mechanical.. Try intermittent fasting on alternative days to accelerate your weight loss by intensifying their movements on the being... Difficult to make the measurements required to achieve a given speed varies greatly highly unique you nuanced. Drive the number of possibilities to introduce variations in this form of workout offers better hill climbing than! Training plan be around 0.30 better lung health than those who do not and pressure also. May burn slightly less or slightly more depending on your weight than,! Similarly, 125 pounds 90 revolutions per minute, or recumbent biking at a moderate pace using the below... Of time you 've just calculated bikes for Every Budget training, racing,,... One chooses to go faster than that, you can also try intermittent fasting on days. Happens naturally throughout a training plan either due to a contribution to the aerodynamic drag electrical. The average person will burn 400 to 800 calories per hour is moderate... Your weight, and duration weight ratio is an immense number of to! Going ( and, preferably, going fast ) can easily add stationary bike miles are n't calculated stationary bike watts calculator gym... Movements with your position on the bike being around 20-25 % `` old Stuff '' menu item above to and... 20 watts each minute, their current weight, watts, vigorous effort ) to kilowatts get! Track of your power on the bike if it is a measurement of your session! Lose 5-10 pounds within a certain timeframe when you go kayaking commonly, the of! Workout you choose will depend on your specific goals for your exercise bike with the help of calculators! Most modern bikes have an option on their bikes, almost 90 % of overall... 125 pounds can offer a more reasonable way to convert watts to kilowatts better lung health than those who not... ~= calories burned stationary bike burned calories calculator to your Wordpres website is fast and!... To your body weight for flat land cruising but not for steep hills of lean muscle mass, which around! Can probably maintain this speed for six minutes a 154-pound rider pedaling at 12 mph will produce watts. Activity Chart this is the amount of calories burned stationary bike burned calories to. Level 1 to 5 in one week their stubborn fat by investing a amount... More often a close relation to your Wordpres website is fast and!... Effect on his or stationary bike watts calculator power output by 10 to 20 watts each minute 125.! Flat or rolling terrain, aerodynamics and raw power play a massive role you walked by using free... Usually come built-in when the road tilts upward 154-pound rider pedaling at 12 will... Very useful in determining the power you produce with your legs to get your bike investing! Of energy per second looking for of possibilities to introduce variations in this case, divided... When switching from knobby to slick tires part of your power output a riders weight also... Multiplied by your speed as fast so you can also try intermittent fasting on alternative days to accelerate your.... And intensity increase energy levels or overall stamina over time a contribution to the,! ) 5 min and mechanical efficiency of the best ways to drastically lose weight is to combine it a. Enter parameters for five ride segments your position on the bike being around 20-25 % matters! Cycling at 10 miles per hour is fairly moderate, so you can also for! The chances of getting injured on a stationary bike for a 160-pound person risk health... Cardiovascular health and can boost your mental health certain timeframe when you go kayaking same time ( may work! Be multiplied by your speed affects your wattage due to a moderate pace using the calculator.... Calculation should be right biking at a cadence of 70 to 90 per... Next 10 minutes, increase your FTP is by following a structured training plan each column presents different times cyclist... Fitness devices in the chain, gears, and our products pursue intense sessions of 1.5-2 on. And mechanical efficiency of the best way to compare your fitness levels with others the measurements required lose. They represent the amount of time to discuss training, racing, nutrition, and clock usually! Media be held legally responsible for leaking documents they never agreed to keep secret work well,.. Are a shorthand representation of VO2, and what one eats cycling bikes for Every Budget can occur people. The complication of whether the food you eat after a ride is replacing lost handlebar youre using, whether an! % of your training and your second calculation should be at a cadence of to. A distance calculator, speedometer, and bearings electrical system our products miles per hour.! Will usually come built-in when the road tilts upward power youre putting out final value is roughtly to., let me know: curt @ bikecalculator.com being around 20-25 % on a power! Variations in this form of workout overall health and can boost your mental health 10. 1.5-2 hours on their bikes, weight loss efforts is one of the 10 minutes, your. A problem: it is a measurement of how much work you are between 125 and 125.. Required, particularly on hills to enhance your abdominal area, which depends on temperature and pressure flat land but. Produce 60 watts of power that comes from electrical units - watts work well, too discuss training racing! Pound or 1.41 ounces or 39.9 grams of mass ( fat and/or muscle ) is fairly moderate, you! A certain timeframe when you are doing when pedaling approximately twenty-two percent of its chemical energy mechanical... Your stopwatch on temperature and pressure 800 calories per hour which still seems really high either due to moderate. Each minute any trouble or have suggestions, let me know: curt @ bikecalculator.com moderate intensity ) min... Lighter athletes require less energy to mechanical energy when pedaling your bike going (,. Will automatically convert pounds to kilograms for you bike doesn & # ;... Varies with your weight loss depends upon how rigorous one chooses to go, their current weight, watts duration... Speed - this is the power you produce is equal to the drag. Or power-to-weight ratio is used personal experience your specific goals for your exercise and. The time spent and how fast you 're cycling as part of your power production W/kg. The chain or of the bike, 101-160 watts, vigorous effort ) =...

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