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Are these hub-spacers? I want to cold-set but not that far...

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Are these hub-spacers? I want to cold-set but not that far...

Old 12-01-10, 06:07 PM
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Are these hub-spacers? I want to cold-set but not that far...

I lucked out the other night and picked up 9sp Ultegra hub laced to a Mavic Pro Open hoop. On the cheap. I have been slowly piecing together parts to build up a modern drivetrain for a 126-spaced bike.

I read a bunch of threads last night that made it seem like some bikes will readily accept these wheels without even really needing to cold-set. I tried this with this wheel, and whoa, no.

Are these spacers? Sorry for my ignorance. The wheel would not come close to fitting.




I guess I also do not understand why you would need these...chain line?
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Old 12-01-10, 06:43 PM
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yes that thick silver washer is a spacer. what is the spacing of the hub? I thought 9spd was 135 for road/MTB? that means you are trying to spread your frame 9mm instead of just 4 for a 130 hub

I beleive the reason for that being on the left side of the hub was to make the center between the hub flanges more symetrical to the overall hub spacing. this would reduce the dish and make a stronger wheel.

you can't just take that out. you would need to redish the wheel and the axle will likely be too long and stick out past the dropout
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Old 12-01-10, 06:47 PM
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Measure the wheel, maybe someone spaced it to 135mm or tandem specs and you can remove some spacers. As long as you keep the wheel centered and the cogs don't hit the frame stays you can remove any spacers you want. That does look a bit long. If it's really spaced out (dude!) you might need a shorter axle as well.
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Old 12-01-10, 06:52 PM
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There would need to be a matching spacer on the DS if you want to remove them (ie must remain equally spaced/centered)...otherwise, heed what BG said.
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Old 12-05-10, 02:30 PM
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Thanks for the help guys. Turns out I was being overly cautious. I finally got the calipers on it and it was indeed 130.

Once I took off the skewer, the wheel dropped in reasonably easily. After adjusting the limit screws, it rolls beautifully. The shifting could be a little better, took some getting used to with such tight ratios. I'm still running an 8spd chain, will a 9spd chain improve shifting a lot? At this rate (cheapo) I'll probably wait until the chain wears out to get a new one unless you guys suggest otherwise. (Ask here not a bike store for the most economical option, right?)

I get why people are so into the Ultegra/Open pro combo. Now if only I could find a front wheel like this for the same price...
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Old 12-05-10, 08:43 PM
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A 9 speed chain will shift much better- it's narrower and will run between the rear cogs better. Plus, if you're using a 9 speed FD/RD, the cages will be happier with the 9 speed chain- same reason. Trust me, I've been there. Try Rocky Mountain Cyclery for a matching front rim.
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