Are Heavier or Lighter Roller Weights More Fuel-Efficient?

[OElena]

Roller weights vary from 4 grams to 12 grams, with original equipment typically around 7 grams. Here is information about roller weights: 1. The lighter the rollers, the stronger the acceleration feel at startup; the heavier the rollers, the stronger the acceleration feel at top speed. 2. This is related to centrifugal force. Lighter rollers require less centrifugal force to be thrown outward, meaning a lower RPM is needed for them to engage, resulting in a stronger acceleration sensation during startup. 3. The opposite is true for heavier rollers. If your vehicle's engine is unmodified, overly heavy rollers may cause the bike to barely move at startup—you'll only feel acceleration after the RPM builds up. 4. Roller weights do not affect top speed. As part of the transmission system, they don't increase power output and thus won't raise the maximum speed. They simply allow you to prioritize acceleration in the low, mid, or high speed range based on your needs.