RACING motorcycle dolly XSP08 anodized aluminum crutchAR stands for these diabolos racing are supplied in pairs mounted directly on the swingarm of the bike - color: red anodized - 8mm diameter - thread length: 20mm Fits KAWA: ZX6R 1998 - ZRX 1100 NOTE: You should make sure of compatibility before purchasing the diameter of fixing your bike Diabolo