Thanks all. There's not that much '16 left of it really to be fair though apart from the frame and engine bottom end!

The '21 swingarm was a relatively easy fit. I had to make some linkage plates, they work well. All that have ridden it agree that it handles fine.

BIG thanks to Martin 77 for the development work, and answering my stupid questions with patience!
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More **** two strokes than you can shake a **** stick at.