#219 O-Ring RK Chains sizes from 100 to 112 (all colors)

All RK chains are pre-stressed and pre-stretched to ensure equal load distribution and require minimal maintenance. RK chains are constructed with the highest-grade medium carbon alloy steel available, with all components shot-peened and heat treated. All RK chain O-ring seals are made from an advanced Nitrile Butadiene composite for maximum performance and wear life. RK chains are tested to be 4 percent more efficient than alternatives above 6,000 revs. Non-stretch - extended life. 
Sizes 100L - 112L.