- Upgraded chain from the DID 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 is Max 800cc
- Longer chain life
- The 520VX3 has a greatly imrproved seal performance due to increased X-Ring retention and durability.