The G2 Progressive Rate Trials Throttle tube for Vertigo provides increased control where needed off idle, then ramps up to keep overall rotation at a comfortable range. The initial rate is same as the Domino BLACK Trials Throttle Tube, which provides great control. However, the BLACK throttle tube requires far too much turn to reach wide open. By increasing the rate at mid-throttle, rotation is nearly same as the WHITE throttle tube. It’s the perfect compromise between the two!
The throttle tube consists of the ultra-smooth G2 tube with Delrin inserts. The cam (or “pulley”) end is the same rate as the Domino WHITE (Fast) plastic throttle tube.
Interchangeable G2 Cams for KTM. For newer models with silver housing, all cams are black or white machined Delrin. 200/300/400 “control” cams are circular from the side, but each has a unique channel that gives the same progressive shape ratio as our other aluminum cams.
Interchangeable G2 Cams for Kawasaki
Interchangeable G2 Cams for Honda
Developed specifically for James Stewart and offers the smoothest throttle action possible. Fits all G2 Throttles.