RKexcel - Chain - GB520MXU Options:GB520MXU 100L Stretch material in calf (less

Stretch material in calf (less bulk inside boot)

Injected-molded polycarbonate hard lens

Engineered fracture point on rear thoracic strut designed to snap off in an emergency

Heavy-duty swivel carabiner

RKexcel - Chain - GB520MXU Options:GB520MXU 100L Stretch material in calf (lessSealed Motocross racing chain. Designed and developed for Supercross and Motocross applications under tough racing conditions. The MXU utilizes RKs advanced U ring for superior sealing and longevity. Real world testing proved that this chain is very durable and dyno testing proved that horsepower is maximized and lap times consistent with non sealed racing chains. The MXU was built super narrow to run on almost any motorcycle and keep the weight to a