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Spreading the rear triangle.(6 posts)

Spreading the rear triangle.SnowBlind
Mar 17, 2003 12:36 PM
My surley 1x1 hub is just 1 or 2 mm too wide for the rear triangle of my fixed. 80's Japanese frame, lugged cro-mo. Any ideas on how to safely spread the tranangle a little. Considered using a floor jack, but sounded like it would be easy to ruin it.
re: Spreading the rear triangle.p chop
Mar 17, 2003 3:42 PM
Why not replace the spacers with thinner ones?
(Assuming you mean the space between the outsides of the locknuts is too wide, and that these stick out some from the outsides of the hub).
re: Spreading the rear triangle.desmo
Mar 17, 2003 7:05 PM
if it's just 1 or 2mm, you should be able to lose or replace the axel washers like p chop said, or just spread it with your hands a bit when putting the wheel in. no need to get out the hydraulics!
I'll look into the narrower washers thing, it makes more sense.SnowBlind
Mar 18, 2003 11:00 AM
Trying to spread by hand takes a tool to leverage. This thing is really rigid!
Just watch the alignment!!RedPat
Mar 18, 2003 9:26 AM
Spreading a steel frame is fine, but make sure if you do that you do it "evenly", that is, while maintaining the same centerline. Replacing the hub washers is easier, but even then, make sure the rim stays centered between the outermost washers. It may require redishing the wheel if you only remove washers from one side.
dropouts are no longer parallel after being spread...ukiahb
Mar 22, 2003 9:47 AM
had a problem w/ this on a loaded touring bike, led to axle breakage, though eventually I had a shop correct the alignment and all was well....would also recommend respacing the axle to fit the frame...parallel dropouts are even more important on a fixie to avoid axle slippage, which could lead to a dropped chain, etc.