Features Sunstar's Exclusive TG (TripleGuard) sealed ring, meaning the ring seals with three contact lips per side, The TG ring completely guards the critical area of the chain from sand and dirt and keeps it well lubricated, Built specifically for handling the most extreme conditions encountered in off-road ATV and motorcycle racing, The TG-ring design prevents the loss of lubricant and is designed to perform under any extreme heat or other course conditions, Uses clip-type connecting link, Lightweight design (4 lb. for 120 links), Will not work on CRF250R/X models due to case clearance.