You are looking at a brand new OEM Rear Axle Sleeve for Vintage Kawasaki Rotory Valve 100cc motorcycles. NOS.  Fits in the rear sprocket hub.

FITS

G3SS/A/B 1970 and up

G4R/A/B/C/D/E 1970 and up

KV100-A7 1976 ONLY

OEM Part Number is 42036-002. Used on these models only. This part has been discontinued and is no longer available from Kawasaki. Please check to make sure that this is the correct part number for your year and model thank you. We ship FREE to continental USA. See "Shipping Details" for the cost of International shipping.