So my drum brake front wheel the plate I bolted the sprocket to became rather loose and starting warping out the sprocket. So I went to the thrift store and made a major discovery! A 20 inch bike with a 5 speed hub! Half off today. Total take? 9 dolla for the bike!
So I installed that thing and to fix the sprocket is on the wrong side dilemma I just slid the jackshaft sprocket over.
Bottom line,now it's pretty FAST! Yes. That's a 415 chain wrapped around a chain ring that's supposed to take a skinny derailier chain. The chain ring is a 28 (I forget maybe a 29) tooth on a 20 inch rim.
I also changed the pedal sprocket to I think a 48 tooth so I should have plenty of momentum to get the speed going with the engine.
First two pics are what happened to my original sprocket. First pic see that brake support inside the hole? Second pic shows how easily you can turn that plate. Now that brake support is gone!
Third pic is my score today! That back rim is now my front rim for my trike. I may use that fork later. I dunno.
Fourth pic is my before shot where the jack shaft normally goes.
Pic 5: Jackshaft sprocket slid over,415 chain laced over large sprocket. It was actually rather easy to do.
Pic 6: I took this shot after an amazing ride!
The freewheel is a bonus. It's strange when I stare at my engine while riding I'm sure it has to be at least 30 mph today I was flying,how when I let off the throttle my chain just stops spinning and the freewheel takes over.
Oh and from MOOP 1 I had a NoMoreFlat tube that's rather torn up. I trimmed it down to accept a 20 inch tire. That's up front,yo. Those things are almost 20 bucks! I think I have 2 more to handle the back side,then when I do my hauling I need not worry about a flat.
Yes,with this gearing,I may see some miles on this dawg.