[The Crashing Tomato]

Originally Posted by SSearchVT

You're adding another variable into the system by going with smaller components but exposing them to the same load as the original sprocket change. The 520 chain will theoretically wear out quicker then a 530 chain with stock gearing. Add in a gearing change and the wear will theoretically be even quicker. This doesn't take into account - Riding style, maintenance, etc.

A racer who takes care of their equipment will wear parts out less then a street rider who doesn't.

Originally Posted by rmbbikes

Sreet riders have no bid-ness going to a 520 kit.

Thanks

I had asked a new sportbike shop owner the same question and got a VERY answer that would have cost me $$$$$$$$