Rocket Exhaust Full System - Chubby Series - 2019+ CRF125F/FB O2 Sensor:w/ O2 Bung - High compression piston with

- High compression piston with rings

BBR logo is molded in place

This kit works great and is nearly half the price of hydraulic kits that offer the same function

wrist pin and clips

will be stronger than a cast or machined shaft (billet)

Rocket Exhaust Full System - Chubby Series - 2019+ CRF125F/FB O2 Sensor:w/ O2 Bung - High compression piston withNow 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