Questions tagged [power]
Power meters and all related data analysis. This includes how to train with power. Power meters measure direct force applied to one of the pedals, crankarm, crankset, rear hub, or other methods. They use cadence in conjunction with the force to measure the power or wattage.
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Power pedals on a fully MTB (riding flat roads), later on road/gravel bike
(Before closing as duplicate, this question is somewhat related but not the same at all: Pedal power meters on off-road / MTB).
Background
I am an avid runner, and am pondering whether I will branch ...
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Why is SRAM/Quarq Drop-In BB Power Meter not Ai-Compatible?
I have a Canondale SuperSix EVO SE gravel bike (2023), which features Cannondale Asymmetric Integration (Ai) technology.
The drivetrain is SRAM Rival eTap AXS and the crankset appears to be compatible ...
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Is an Ultegra Shimano left side FC-R8000 crank arm compatible with newer Shimano Ultegra R8100?
I’m buying a new bike with Utegra Di2 R8100 group set. It doesn’t have a power meter. I have a power meter on my older bike with Ultegra R8000 group set. Is an Ultegra Shimano left side FC-R8000 crank ...
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How to adapt a 130 BCD Crankset to 110BCD for fitting a power meter?
I have a Cube road bike with a Shimano Ultegra R6703 crankset. In shopping for affordable power meters I have come to the realisation that there are none with a 130BCD 5-bolt pattern for fixing to the ...
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Power output changes with gradient
Parallel question to this one: How does a cyclist's power output vary as gradient changes (assuming constant effort), compared to a baseline of cycling flat?
I'll state some of the obvious things:
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Power and climbing speed
I live somewhere very, very flat (bridges are the biggest hills around) and I'm planning some hilly routes for a bike holiday. I have a decent idea of how much power I can produce, but less sure how ...
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When does power meter accuracy matter?
For a given use case power meter accuracy may or may not matter.
Here are two use cases:
BikeRumor - Power Meters Explained
No matter which power meter you land on, the most important aspect is ...
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How can consumers test if their power meters are accurate, and how should we address discrepancies?
How might consumers determine if their power meters are accurate? As additional scenarios, what might they do if they have two power meters whose readings diverge, or if they have three and one ...
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Accuracy of pedal-based power meters when used with pedal extenders / pedal spacers
Is the accuracy of a pedal-based power meter (examples) significantly affected by using them with pedal extenders (example)?
Thank you.
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How do I evaluate a Crit race (based on stats)
So I recently did a Crit race (I only do 1 a year in my home town) this year I upgraded the bike and it's fitted with a power meter so I can see the race statistics.
The race was locals only. and ...
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Can a lightweight cyclist climb better than the heavier one by producing less power?
I guess it's possible because on the climbs you need to beat gravity more than the wind resistance but is there a formula to calculate how much the weight of the rider affect the climbing performance?
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XTR 9100 left power meter on XT 8100 crankset
Can I put a stages XTR 9100 left side power meter on a XT 8100 crankset? Seems like it should work, but haven’t found a clear yes answer.
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Is a Shimano Ultegra FC-R8000 Crankset Compatible with a Shimano 105 5700 10-speed Groupset?
I have a 2012(?) Bianchi Via Nirone 7 with the following components:
Cassette: Shimano 105, CS-5700, 11-28, 10-speed
Crankset: FSA Tempo, CK-C200-3, 50/34, 172.5mm
Rear Derailleur: Shimano 105, RD-...
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What is the ideal physique for a hand-cyclist? [closed]
A handcycle is a tricycle that is powered by the rider's arms, not by their legs.
an upright style. Note lap-belt and foot straps, and an extremely laid-back head tube angle.
An aggressively aero ...
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eBike torque sensors: Are hub systems capable of the same ride feel as mid-drive?
There are two basic types of ebike controller - cadence or torque sensing. Typically mid-drive ebike systems use torque sensing to control the motor, and cheaper hub drive systems often use cadence ...
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