Driven Racing 420 Rear Sprocket for Kawasaki Z125 porting Derbi GP1 50 * Euro2

Derbi GP1 50 * Euro2 2005 () with chain drive

or a high-flow air filter

This gasket set is a direct replacement for the 250cc Liquid-Cooled (172mm) engine family:

These 7/8" bars are a direct-fit upgrade for most Vintage Japanese (UJM) and Modern Classic motorcycles:

Driven Racing 420 Rear Sprocket for Kawasaki Z125 porting Derbi GP1 50 * Euro2Driven Racing EVO TECH rear sprocket for Kawasaki Z125 with 420 chain. Driven Kawasaki Z125 rear sprockets are available in 30t and 32t options. A few rules regarding gear ratios for sprockets are as follows: Drop teeth on front add teeth to rear = increased torque, increased acceleration, wheelies, racetracks with short straights Add tooth on front reduce teeth on rear = increased top end speed, open road cruising, lowers RPMs, better gas mileage,