SOHC.co.uk Forums > CB750

Taking Comstars to bits --- Again.

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hairygit:
I didn't say you COULDN'T change wheel size, just that it would reduce ground clearance and change the way it steers ;D

the-chauffeur:

I'm assuming you've seen the Wheel Refurb post by RWG, but in case you haven't, I'll just repeat . . .

 . . . get hold of a copy of issue 14 (Dec 2011) of Practical Sportsbikes.  There's an article in there on a bloke who's worked out a way of taking them apart and rebuilding them on small capacity 125's, but . . .

 . . . like the others have said, this really isn't something you want to try to do it yourself.  It's a seriously specialised job - at the very least you'll probably have to make up some triangular-oval spacers and make rivets out of aluminium rod.  The guy who was interviewed about the job for the article only does them for himself and says he wouldn't want to attempt to rebuild wheels from bikes bigger than 125's because of the risk of something going badly wrong.

Waggles:
There aren't enough 'spokes' on a comstar for me to even think about this kind of thing, any failure would have to be catastrophic ........

Bryanj:
Going back a lot of years there was a firm that made disc like rotors that bolted on in place of the comstar spokes with holes for normal spokes so you could lace up a standard type rim, BUT they did not sell well and, from memory, also failed at times so were not really recommended

r1_pete:
OK Cheers all, that seems pretty conclusive, anyone want to buy a CM400 front wheel.... :D :D :D

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