The OS-BASE is an 'over the seat harness' for mounting OS-6

An excellent basis for optimum chain maintenance

engine problems

Cordura®: Reinforcement fabric at knee and leg

made of pleated 304 stainless steel

Ultimax - UA Drive Belt (UA425) Options:UA425 The OS-BASE is an 'overMaterials and Manufacturing: Fiber loaded rubber designed to grip the clutches and to stay that way over the life of the belt Each belt has rubber compounds that work best for the application Every Ultimax belt contains strong and stable aramid cord Zero stretch and maximum tensile strength Built with modern methods to reduce variability and eliminate most classic failure modes Dimensions: Every Ultimax belt is manufactured using processes that reduce