Replacement exhaust valve kit 170cc ATHENA engine 4FU (derbi gpr / yamaha tzr / tdr / dt ..)

Here is the spare exhaust valve for the kit 170cc ATHENA racing on 4FU engine, so on 125cc DERBI GPR motorcycle, YAMAHA TZR, TDR, DT ... Top-of-the-range piece with an irreproachable finish! Ideal in case of breakage to repair your precious kit ATHENA 170cc.