# A How Bicycle Wheel Rim weight changes forward acceleration?

#### Sprogpole

Summary
How much faster will a bicycle accelerate forward if both front and rear wheel rims are changed for lighter ones?
Power input, size, hubs, spokes tyres, Frame etc all staying the same.
I can give you any sizes and weights needed, let me know what is needed for this calculation and I’ll reply.
How much faster will a bicycle accelerate forward if both front and rear wheel rims are changed for lighter ones?
Power input, size, hubs, spokes tyres, Frame etc all staying the same.
I can give you any sizes and weights needed, let me know what is needed for this calculation and I’ll reply.

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#### berkeman

Mentor

But in BMX, you can't make the rims too light/weak, right? There is a limit before you start bending your rims landing jumps...

#### rcgldr

Homework Helper
The affect on acceleration of a difference in weight in the rims would be similar to a bit less than doubling that same difference in weight on the frame. If each rim is 0.25 kg lighter, for a total decrease in rim weight of 0.5 kg, then the affect would be similar to the frame being a bit less than 1.0 kg lighter.

"How Bicycle Wheel Rim weight changes forward acceleration?"

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