Front Sprocket 16T

The Rush SR ships from the factory with a 15-tooth front sprocket. This 16-tooth front sprocket is an alternative final drive ratio option, adding one tooth to lengthen the gearing for tracks where higher top speed is more important than low-end acceleration. The change is subtle but measurable — one additional tooth on the front sprocket is roughly equivalent to dropping two or three teeth on the rear.

Fits the Rush SR's chain-driven final drive system and works with the standard RK GXW 530 chain. Swapping the front sprocket requires a 32mm socket and the rear sprocket stays at the fixed 44T.

Note: for spec competition, only the 14T and 15T front sprockets are legal configurations. The 16T is available for non-competition use such as track days, time trials, or open-class events. If you're looking for a spec-legal shorter option, the 14T front sprocket is also available.