Clutch Bell Naraku CNC 107mm Minarelli EXHAUST This Stage6 R T exhaust is This Stage6 R T exhaust is therefore aimed at the most demanding tuners and competitors who want to get the most out of their cylinder kit 95mm piston (size A) The design of this bell is made to cool your clutch and your variation as well as possible thanks to the openings on the top but also thanks to the ring allowing the heat to be dispersed in your crankcase The design of this bell is designed to best cool your clutch and your variation thanks to the openings on the top but also thanks to the ring allowing the heat to be dispersed from your crankcase