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He doesn't have a chain connecting the pedals to the rear tire so its not really functional. Check out the video - he never pedals, and when he folds it you can
by krschultz 17y ago
He doesn't have a chain connecting the pedals to the rear tire so its not really functional. Check out the video - he never pedals, and when he folds it you can see there is no chain.
You can't have a joint that changes the geometry between the rear hub and the pedals. On this bike there is a hinge and they end up being next to each other. On current folding bikes the hinge is forward of the pedals - the locking mechanism is usually the weak point, spend time improving that.
- adamhowell 17y agoNot only does it not have a chain, it only has one pedal.
- alex_stoddard 17y agoFor this to work I think the drive-chain would have to be a jointed drive shaft. I actually ride an (un-jointed) drive shaft bike - very handy in very harsh winter conditions. However, that sort of drive chain would add even more complexity and cost.
- didroe 17y agoYou could have a removable chain. Or use a belt and design it so it can fold over or something.
- blasdel 17y agoYou absolutely can have variable geometry between the axle and bottom bracket -- most all rear suspension designs do it, and then have clever linkages to cancel out the force of the chain.