Rocket Exhaust Full System - Chubby Series - 2019+ CRF125F/FB O2 Sensor:w/ O2 Bung Fits all years Z125

Fits all years Z125

- High compression piston with rings

Use it by matching the reinforced clutch spring with the standard clutch spring

If you are going to be doing off road trail riding

wrist pin and clips

Rocket Exhaust Full System - Chubby Series - 2019+ CRF125F/FB O2 Sensor:w/ O2 Bung Fits all years Z125Now offered with optional O2 bung ready for those that are running the aRacer AF1 AF2 or the PV3 with auto tune function. (+$60) ONLY AVAILABLE HERE AT FACTORY MINIBIKES!!! Built using our octagonal muffler housing and carbon fiber end cap from our full size exhaust systems. The Chubby is a short muffler design that creates big bike sound and increases power! Octagonal shaped large volume muffler housing means more power and better sound Stepped head