how about a minibike?
http://ohlssonandrice.forumer.com/topic/1168320/Micro-Power-mini-bike#.VGd3gPmG9sj
building plans:
http://www.vintageprojects.com/mini-bike/pocket-bike.pdf
specs
general
principles of operation
removal
disassembly
inspection and repair
reassembly
installation
trouble shooting test procedure
trouble shooting chart
specs
front wheels and bearings
removal and disassembly of front axle assembly
inspection and repair
reassembly and installation of front axle assembly
steering assembly
adjusting the toe-in
ah, makes sense, was talking with steveasaurus a couple of weeks ago, he told me it had to do with the brakeshaft thingy that makes it a 3speed or 4speed / 6speed or 8speed
Koen
3speed /4 speed and 6 speed / 8 speed difference has something to do with where the axle for the brake drum comes out, some come out closer to the rear(fixed on the mushroom gear) others are attached on the cluster gear shaft.
Koen