D.I.D. 520 VX3 Chain - X Ring Upgraded chain from the D.I.D. 520 VX2 chain New "Direct Energy Transfer" gives you amazing throttle response due to D.I.D. State-of-the-Art technology to increase the chain's rigidity New 520VX3 chain will fit a wider range of motorcycles: 125cc - 800cc Longer chain life - the 520VX3 has a greatly imrpoved seal performance due to increased X-Ring retention and durability Clip style masterlink included Fits: Ducati 600 SS 1994-1999 750 SS 1991-1996 750SS 1997-1998