I found some differing equations on the internet than what I thought on how to arrive at the rear wheel torque value for Motorcycles, so I thought I had better ask here to make sure.(adsbygoogle = window.adsbygoogle || []).push({});

One site said Rear Wheel Torque = Chain Tension X Tooth Count Ratio (front & rear sprockets)

I was under the impression that the formula was:

Rear Wheel Torque = Chain Tension X (Rear Sprocket Pitch Radius/Front Sprocket Pitch Radius)

At first I thought both would work out the same but after measuring some things & doing the numbers there is quite a difference in the final outcome.

Not sure now what to think?

Any help would be appreciated!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Rear Wheel Torque Equations

**Physics Forums | Science Articles, Homework Help, Discussion**