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XR100 Swingarm

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Maybe one of you can help me. I have an '81 YZ80 with more engine/trans problems than I want to spend money on but it has new tires and chain/sprockets. So I figured I'd put an XR100 engine on it for my daughter to grow into from the XR70. Don't want those new parts to go to waste just sitting!

To make things easier I am moving the swingarm pivot back and down and I got to thinking maybe I could put in the rear suspension from an XR100 or 80. The YZ is a mono but it is the early linkless type.

So to see if this might work I need the following:

The width of the swingarm including whatever spacers or bushings are used

The width between the wheel mounts

The length of swingarm from pivot to axle

Distance from the swingarm pivot to the upper shock mounting bolt.

Thanks!

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ACS is the guy to talk to. He has an '82 yz80 with a XR100 motor in it. The '82 has the same suspension as the '81.

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