Originally Posted by mapbike
I dont see where it says what the rear wheel drive pulley is made of, is it Alum. Steel or some type of plastic material?
If your talking about the GEBE drive ring that mounts to the rear rim of your bike,its made of aerospace composite plastic of some sort....Much better than steel or aluminum.....it wont warp or bend,it just flexes and goes back to its shape if you twist it(thats before you mount it on the rim)....
Someone also mentioned that Daves smaller cc engines probley would not have much torq for take off and you would have to use a gear that would give you lots less top speed but better take off....I dont know if this is true,but would look into it before buying the smaller cc engine....