ZETA Throttle Tube ZE45-0001 Aluminium ZETA ZETA throttle tube ZE45-0001. See if it fits your bike. Kawasaki KLX 230 R Kawasaki KLX 450 R Kawasaki KX 250 Kawasaki KX 250 F Kawasaki KX 250 X Kawasaki KX 450 Kawasaki KX 450 F Kawasaki KX 450 X Suzuki RMX 450 Suzuki RMZ 250 Suzuki RMZ 450 Yamaha 225 Serow