'TreeBike' Rear Wheel Detail
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Well, here finally is a better (hopefully) description of how the rear 'suspension' of TreeBike was put together. As you can see, I cut off and squashed the original rear triangle way down - hardly a triangle at all now. (The three vertical pieces in the picture are non-structural (rear rack))
First, I squared off the front ends of the chainstays (kept as long as possible) and
welded on a short length of 1x1 angle iron (C).
A single bolt runs through the original 'brake stay' (A), the cross-tube where the old caliper brake mounted, and through the solid rear portion of the wood frame. This same bolt also secures the kickstand.
What can't be seen above is a small bracket mounted on the two bolts through (B) on which I mounted the current brake caliper.
That's about it. The weak point has to be the single bolt through (A), but so far there are no signs of weakness. Then again Sue only weighs about 100 lbs. and she doesn't stress it much. For a heavier rider I'd braze on another cross-brace similar to (B) to spread out the load a little.
If I've confused you with all this please feel free to e-mail me and I'll try again. ss
As an aside...
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