Re: Shifter Bike Freewheel Skipping?
What you are experiencing is pretty normal with the Shift Kit and Grubee combination. There is just so much "slack" in the system that when you back off on the throttle to shift it creates a little slack in the drive train then when you reapply the throttle all that slack has to be taken back up again before it starts to drive again. This gives the sensation of some free revving of the engine and then catching cause a jerking sensation. The two bits of advice I can give is keep all your chains tight so there is less slack and don't get out of the throttle as much between shifts so there is less "slack" to take back up before it starts to drive again. Also I don't know if you are running the freewheel on the gear box output sprocket but that makes it a lot worse.