V FORCE 4R REED BLOCK GASGAS MC85 21-ON HUSQVARNA TC85 14-ON KTM 85SX 03-ON 105SX 04-11 Stock Item:Default Title • D3O Viper back protector

• D3O Viper back protector pre-fitted

¬ Utilises latest race compounding and large tread blocks for better cornering stability and adhesion

Features a high dry boiling point of 270 degrees Celsius to resist brake fade during extreme heat cycles

Precision-ground thickness of 1

Hours and hours of research and development have culminated in this affordable

V FORCE 4R REED BLOCK GASGAS MC85 21-ON HUSQVARNA TC85 14-ON KTM 85SX 03-ON 105SX 04-11 Stock Item:Default Title • D3O Viper back protectorThe VForce4 is built upon the solid foundation that made the VForce3 reed valve system such a success for over fifteen years. While the VForce3 has been continually refined over the years (including the latest VForce3R models), this is a complete redesign of the entire system. We jokingly say, "The only thing we didn't change is the bolt pattern." However this is actually quite true. All the components that go into making a VForce reed valve system