Other Stuff > Misc / Open
New Superdream problem - bit of a bodge?
K2-K6:
Agree with Ash, it's well within small adjustment category for optimisation of a motorcycle chassis geometry too.
Far more subtle than length of shock etc as it won't alter static fork angle and geometry.
Modern method make use of moving the swing arm pivot to change wheelbase, alter squat and anti squat etc by the ability to move the pivot both vertically and longitudinally.
McCabe-Thiele (Ted):
Thanks for all your imputs
I'm going to keep the replacement swing arm, it's in too good a condition not to, I will see if the supplier has a suitable chain guard. I could cut off the front bracket from the old arm, not sure rivetting a bracket in the right place is a good idea.
The old swing arm had rotted from the inside, presumably water gets inside somehow.
McCabe-Thiele (Ted):
I'm still a little undecided about returning my longer rear swing arm.
I've been looking at an issue that might arise with my existing chain being too short using the longer arm.
My 400NA bike has a 16T front sprocket, 36T rear spocket, standard chain is a 530-100L part.
The 250 version uses 15T/41T spockets chain is 530-102L part.
At a glance the extra 2 links might sort out the longer chain needed.
K2-K6:
Conventionally speaking, you can only alter the chain by 2 links (two pins, effectively) to be able to join it again.
This, conveniently, gives you the amount of extension you get by measuring one pin to another (or chain dimension chart) to see how much further you can position the wheel away from front sprocket.
Bryanj:
530 chain is available in many different lengths, get one too long and shorten it, you grind the heads off the two pins on one side plate and it falls apart
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