ZETA Throttle Tube ZE45-0016 Aluminium for Honda ZETA ZETA throttle tube ZE45-0016. See if it fits your bike. Honda CRF 250 R Honda CRF 250 RX Honda CRF 250 X Honda CRF 450 L Honda CRF 450 R Honda CRF 450 RL Honda CRF 450 RX Honda CRF 450 X