- #1
PhilCar
- 3
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Hi, I’m not an academic and I would like clarification on the following questions. I have searched your forum and the web in general for the answer in order to avoid unnecessarily bothering anyone but was unable to find the answer.
Here are my questions.
Barring minor influences of friction and other minor forces and excluding acceleration and deceleration, for a given bicycle gear setting (front chainring and rear wheel cog) and a given crank arm length, does the pressure applied to a pedal (the force applied with each pedal stroke) vary with cadence if the profile of the road were to remain constant?
For example. Let’s say a rider is using 39 tooth chainring and a 21 tooth cog on the rear wheel and is riding on a constant ratio climb. If they ride at a cadence of 60, there is a certain force applied to each pedal stroke. If they ride the same hill, in the same gear but with a cadence of 90, is the amount of force applied to each stroke the same? I am aware the total amount of power applied would be greater with the higher cadence.
Essentially, aside from differences in the force applied to the pedals during acceleration or deceleration, the force applied to the pedals for a fixed gear ratio with fixed crank lengths and on a fixed ratio climb, for a particular rider and bike combination (implying their overall weight), is a fixed value, regardless of the cadence they are peddling at. Is that statement essentially true or false?
When I refer to the force applied to the pedals I am assuming the cyclist’s technique is the same regardless of their cadence.
I hope I have been clear enough
Cheers,
Phil
Here are my questions.
Barring minor influences of friction and other minor forces and excluding acceleration and deceleration, for a given bicycle gear setting (front chainring and rear wheel cog) and a given crank arm length, does the pressure applied to a pedal (the force applied with each pedal stroke) vary with cadence if the profile of the road were to remain constant?
For example. Let’s say a rider is using 39 tooth chainring and a 21 tooth cog on the rear wheel and is riding on a constant ratio climb. If they ride at a cadence of 60, there is a certain force applied to each pedal stroke. If they ride the same hill, in the same gear but with a cadence of 90, is the amount of force applied to each stroke the same? I am aware the total amount of power applied would be greater with the higher cadence.
Essentially, aside from differences in the force applied to the pedals during acceleration or deceleration, the force applied to the pedals for a fixed gear ratio with fixed crank lengths and on a fixed ratio climb, for a particular rider and bike combination (implying their overall weight), is a fixed value, regardless of the cadence they are peddling at. Is that statement essentially true or false?
When I refer to the force applied to the pedals I am assuming the cyclist’s technique is the same regardless of their cadence.
I hope I have been clear enough
Cheers,
Phil