D.I.D's 520VXGB X-Ring is a heavy duty chain designed for high performance m/cycle. The patented X-Ring construction creaters a chain that is low in friction and high in wearresistance. D.I.D X-Ring have the greatest wear resistance of any other of O-Ring or Non-O-Ring chain.

D.I.D 520-NZ Heavy duty chain. D.I.D's exclusive SDH pin treatment is the secret behind the superior performance of the 520 NZ series. NON-GOLD finish.

Greater rigidity (7% higher than previous VM) Higher rigidity creates smoother handling, reduced power loss and quicker response Highest value in all D.I.D series D.I.D X- Ring has half the friction compared to O-Ring chain Superior longer life than previous VM series Replaces the Professional O-Ring V Series and the Premium X-Ring VM Series.

The Professional VX X-Ring Series is a high quality VX X- Ring chain with excellent wear resistance. D.I.D Professional V Series chain is a great value VX X-Ring chain.

D. ID 520 ATV chain features the same low friction long wearing X-Ring technology as the VX, ZVM-X, ZLV, and ERV Chains. Special steel alloy is used to provide extra strenth required for Quad Racing.

THC heavy duty 520 O-Ring Gold chains are specifically made for motocross and off road riding, offering fantastic performance at an excellent price.

THC heavy duty 520H Gold chains are specifically made for Road, Motocross and off road riding, offering fantastic performance at an excellent price.

THC heavy duty 428H O-RING Gold chains are specifically made for Road, Motocross and off road riding, offering fantastic performance at an excellent price.

THC heavy duty 428H Gold chains are specifically made for Road, Motocross and off road riding, offering fantastic performance at an excellent price.

THC heavy duty 420H Gold chains are specifically made for Road, Motocross and off road riding, offering fantastic performance at an excellent price.

THC heavy duty 415H Gold chains are specifically made for Road, Motocross and off road riding, offering fantastic performance at an excellent price.