Racetech Factory R2.0 Monoblock chain block Black Honda CRF250R/450R 07-

Rtech R2.0 Monoblock Factory chainguide. A new, extremely durable design consisting of a flexible yet stable outer material to absorb shocks and a highly durable TPU inner section to ensure maximum durability. This chainguide allows the entire TPU inner section to be replaced, resulting in a very low long-term cost/service fee. The square design of the inner section allows for the replacement of all chain bearing directions, not just the lower section as in other models.