Driven Racing 420 Rear Sprocket for Kawasaki Z125 porting This layout guarantees seamless plug-and-play

This layout guarantees seamless plug-and-play integration with factory Razor variable-speed twist throttles

This tool keeps flywheels

Aprilia Atlantic 125 Mojito 125

If your bike runs an unaltered 105mm setup

Driven Racing 420 Rear Sprocket for Kawasaki Z125 porting This layout guarantees seamless plug-and-playDriven 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,