In developing the Pro-Street VX Series, D. D focused on improving chain "Rigidity". Traditionally, "Tensile Strength" has been used to measure the strength of a chain.
But Tensile Strength is only a laboratory measurement of a chain's "breaking point". Rigidity increases a chain's ability to withstand forces that occur in a rider's real world experience. Rigidity increases power transfer from the engine to the ground and greater resistance to stretching under load.To maximize performance, ZVM-X chains have D. D's race proven low friction X-Rings. D's PRO-Street VX Series Chains are a perfect match for your dual sport, sport bike or sport touring bike. D's PATENTED X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-Rings and other makers' modified O-Rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss. 1.5 to 2 TImes Longer Wear Resistance.
The X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-Ring. X-Rings have the greatest wear resistance of any other type of O-Ring or Non-O-Ring chain. TBG The Bike Guys we are a supplier of quality Motorcycle and Scooter spare parts specifically designed for small capacity machines.We aim to increase our product range on a weekly basis. Please order Before 2pm Monday to Friday for same day dispatch any orders that are made on the weekend or bank holidays will be dispatched the following Monday. Will this fit my bike? Please note that due to the fact we do not open on the weekends message replies may be slow on Mondays but do not worry we have not forgotten about you.