Q-matic With 72T Sprocket

Discussion in 'Frame Mounted Engines' started by Mike St, May 31, 2011.

  1. Mike St

    Mike St Member

    Well, I installed the 72T rear sprocket on the q-matic drive. I have the first generation q-matic with the tension wheel on the bottom of the belt. The 72T improved take-off from a standing position by about 30%. The bike had more of a solid feel, and I was surprised at the improvement in power between 10-20 mph. I felt the motor rpms were about right in the this speed range. I didn't test the top speed because I feel it's too dangerous at top speed, and here we have city streets, no open roads. I would like about 10% more power, so I am going to install the flex exhaust. Then I will upload several pics and a new video. With 10% more power, I would be in heaven.