My Friends Mini Bike I'm Restoring

#81
My buddy Brought his Honda CT70 over and we got it running and decided to race it against my mini bike. By the end of the block I was half a block ahead and my chain came off. Having a clutch band brake I had to take the corner way faster than I was comfortable with and roll to a stop. I decided right then that it wasn't going to happen like that again. Oh my chain may come off again but I'll have a front brake next time. So I took a tri star sprocket mount and made a spacer for a disc rotor. It came out pretty good and I made a spacer to go between the wheel bearings so I can tighten the front axle. Just need to make a caliper mount and weld it onto the fork leg. The wheel is crooked by about .040'' and I will probably have to shim the rotor straight. I checked the rear wheel only to find it has runout also. No wonder my chain came off. I guess the quality control on these wheels is not that good. DSCN8707.JPG DSCN8706.JPG DSCN8709.JPG DSCN8708.JPG
 
#83
I decided to step up to #41 chain for my final drive and made an adapter to mount a sprocket I already had. I needed to shim 2 of the through bolts in order to true the sprocket runout. The chain will run a little closer to the tire allowing me to center the wheel better. DSCN8714.JPG DSCN8715.JPG
 

DaddyJohn

Well-Known Member
#84
I've always wondered about flex if adding brakes to spindly forks, but being a motorcycle guy, wholeheartedly appreciate front brakes!

A sprung fork sort of precludes this idea, but welding a truss-style reinforcement plate (say 3/16") on the front of a solid fork would look make it look like a faux girder fork and prevent flex. Shouldn't add a ridiculous amount of weight...:)
 

Attachments

#89
I made these small brackets to hold my foot peg shaft on. They will be welded to the frame in a desirable location for my buddy and I to be comfortable. The pegs are folding Harley buddy pegs I get from the Long Beach cycle swap for a dollar or so each. DSCN8728.JPG DSCN8729.JPG
 
#92
Thanks, DJ, I may need to get one of those. There's a few ways to form foam and most are messy. I haven't done it a lot so I'll see how it goes.
 
#98
Today I cut out my seat base, then glued the foam to it. Next I mounted it in a board and cut some guides for the shape I want. Cut it with a hacksaw following the wooden guides and it came out good enough to have a cover made. DSCN8734.JPG DSCN8735.JPG DSCN8739.JPG DSCN8740.JPG DSCN8742.JPG
 
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