G2 Ergonomics Tamer Throttle Tube 40-4F-157 Evens out the abrupt initial power delivery to increase control and traction Introduces a non-linear ratio between hand throttle and the carb or throttle body opening Throttle cams radius is reduced initially, which requires the rider to rotate the throttle slightly further to get the same opening position as stock; the radius increases after half-throttle to keep the full throttle position at or near stock Includes a 400 throttle cam and a machined billet aluminum throttle tube with a knurled surface Removable end cap allows easy handguard installation