...mine came with 9 gr...and that was way too much...initial take-off was ok, however between 25 and 40 mph, accelleration was very slow...and climbing even slight inclines brought me down to 30 mph...I removed three of the rollers, and wow!...what a difference....my engine revs higher than ever, accelleration all the up to 40 is awesome, I top out at 50+ down some good size hills...and climbing those same hills I rarely drop below 38...The Malossi variator also came with a longer main clutch spring...I'm still studying the effects of what that different spring causes...