I did buy a slightly bigger one from the dealer that I got the bike from. Later I found out that more parts are needed to make room at the chain guide which also were in the hard parts catalog. The 11 tooth sprocket on the front is really small and ordered a spare and was the first to do so in this country as it needed come from I presume the factory warehouse.
I am wondering about how fast it will go with a bigger front. It seems to top out at max torque around 30 or 35 mph as it is, not sure I want to lower that with where I currently ride.
Sprocket specialists generally will make anything you want. I have been lead to believe the wheels are the same as an 85cc junior bike, if the sprockets have the same part number for any of them then you could look for that application. Likely there are serious competitors with fathers that buy lots of stuff for those bikes.
Fran
