FITTING OF THIS PRODUCT: According to the data provided by the manufacturer, this article is valid for the following brands, models and years:BULTACO Lobito K 100 (1 Cyl) 0 BULTACO Sherpa S 100 (1 Cyl) 0 KTM 80 Chopper (1 Cyl) 0 KTM 250 GS 1 - 14x12,7mm KTM 250 MC 1 - 14x12,7mm KTM 250 MC GP 1 - 14x12,7mm KTM 400 GS (1 Cyl) 0 KTM 400 MC (1 Cyl) 0 KTM 400 MC GP (1 Cyl) 0 KTM Moto-X 400 1 -1985 Models with ½", 12.7mm Thread BOMBARDIER 340, 340 E Olym.Ever 339 - Rotax Engine BOMBARDIER Nuvik 1979 339 - Rotax Engine KAWASAKI K 440-2SS 429 - 12.7mm(1/2") Reach KAWASAKI K 440-3RS 429 - 12.7mm(1/2") Reach KAWASAKI K 645-3RS 645 - 12.7mm(1/2") Reach KAWASAKI K 645-3SS 645 - 12.7mm(1/2") Reach