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Old 07-28-2012, 04:13 PM
george_n_texas's Avatar
george_n_texas george_n_texas is offline
Motorized Bicycle Elite Member
Join Date: Sep 2009
Location: Texas
Posts: 981
Default Re: Thinking about a bumble bee

The friction drive like the BB and Dax just have a roller that spins using the friction against the tire to turn the tire...bout as simple as it gets it's just an extension of the drive shaft pressing down on the tire. They look a bit awkward but believe me you won't know it's back there any more than package on a rack. IDK if you can mount a larger engine on the BB you'd need to email them.
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