V FORCE V4R REED BLOCK YAMAHA YZ85 93-ON Heavy Duty Tube Motoz -

Heavy Duty Tube Motoz - 3mm thick - Specifically designed for intense MX & Enduro racing

they tend to split and tear (and are almost impossible to patch/repair

Kawasaki KX250F 06-23

VT 125 C Shadow VT125C 1998 2000

Free air delivery 5

V FORCE V4R REED BLOCK YAMAHA YZ85 93-ON Heavy Duty Tube Motoz -The 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