V FORCE 4R REED BLOCK GASGAS MC85 21-ON HUSQVARNA TC85 14-ON KTM 85SX 03-ON 105SX 04-11 Thread diameter 30mm

Thread diameter 30mm

but you do need to use the correct mounting bolt

allowing for tighter tolerances and better performance

Part Number: 3290-1IN Uses stock valve springs

V FORCE 4R REED BLOCK GASGAS MC85 21-ON HUSQVARNA TC85 14-ON KTM 85SX 03-ON 105SX 04-11 Thread diameter 30mmThe 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