ZETA Throttle Tube ZE45-0014 Aluminium ZETA ZETA throttle tube ZE45-0014. See if it fits your bike. Suzuki RMZ 250 Suzuki RMZ 450 Yamaha WR 250 F Yamaha WR 450 F Yamaha YZ 250 F Yamaha YZ 250 FX Yamaha YZ 450 F Yamaha YZ 450 FX