Engines and categories require different gear ratios due to their optimal power range. But there are also a variety of similar ratios like 12-72 and 13-78, and there are different makes of sprockets. Are there any differences to which one we pick? 

Smaller or Bigger Sprocket?

Gear ratios are a big topic since there are aspects for and against smaller and larger sprockets. While engines nowadays don’t need big 14+ teeth front sprockets to put power to the rear wheels, some still prefer to run bigger. Physics backs it up and proves that larger sprockets run smoother and are more optimised for transferring power.

From the driver’s point of view, a smaller sprocket is safer to drive when there are kerbs or sharp track edges. A mistake while crossing them could leave you stranded at the side of the track with a bent rear sprocket and dropped chain. Personally, I’ve lost races for that reason. Smaller sprockets are most effective in wet for the very same reasons. In the soon launching KartletiX PRO, we will present all of the ratios in an easy-to-understand format that’s easy to use even at the track. Bigger sprockets are nowadays saved with protectors on both sides. They can take a hit from a kerb and still keep the engine running. Unyielding protectors could still bring irreversible consequences, but too soft ones won’t be effective enough. The materials must be chosen carefully. 

Different Manufacturers

In conclusion, there are performance advantages with certain sprockets but very few drivers can showcase the differences. Therefore, the advantage is not massive. Different gear ratios should be chosen based on the conditions and available equipment, however, there are no differences in performance.