Bicycle Mechanics - 133mm rear spacing?
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04-18-06, 02:25 AM
Hi, I have just recently bought an older style steel colnago (frame only). I have measured the rear dropout spacing at 132mm. I have put a 9 speed wheel on it. The 9 speed came out of my Lemond Tourmalet, which is spaced at 130mm. The wheel does not fit at the moment as I found out face first on the drive when I gave it a tentative ride.
Firstly, is this 132mm spacing to be expected? I have not been able to find any info on this spacing. Or could this be the result of a bad cold setting?
Secondly, if 132mm is fair dinkum, can I still use my 130mm rear hub, replacing the current axle, with a longer longer axle and adding more spacers?
LBSs have not been able to advise and I have searched for info on these forums to no avail. Thank you.
04-18-06, 02:34 AM
my guess would be a bad cold setting. you fail to mention the age of the colnago. as a general rule 70's spacing was 120, 80's spacing was 126 and 90's and newer 130.
04-18-06, 06:25 AM
Tighten the quick release tighter - you ought to be able to pull in the dropouts 2mm without any trouble. Otherwise, yeah, you're going to need to get it cold set to 130mm - which might not be a bad idea anyhow; if whoever cold-set it before got the width wrong, they might also have screwed up the alignment, so getting it checked wouldn't be a bad thing.
130 vs 132 shouldn't be a big deal with a steel frame. It was re-spaced at some point, and whoever did it seems to have missed the mark. Make sure that the frame is straight.
04-18-06, 07:57 AM
I think the 132mm is normal on a steel frame and it is set that way so there is a extra mm on each side for ease of insertion of the wheel. My steel '06 Sarthe measures 132. The frame flexes a whole lot more than this when you ride it or it's on a trainer.
04-18-06, 08:21 AM
There are a number of current Road/Cyclocross/Touring frames with the dropouts purpously set at 132.5 mm so they will take either a road hub (130 mm) or an MTB hub (135 mm).
In the past, there were road frames spaced 128 mm to allow either 7-speed (126 mm) or 8-speed (130 mm) hubs to fit. My '92 Al frame Trek was made this way so the concept isn't new.
Properly adjusted, the qr skewer will firmly clamp a 130 mm wheel in 132 mm dropouts so, if it slipped, you didn't tighten it correctly. Yes, this is "fair dinkum". BTW, many of the "boutique" lightweight skewers aren't capable of sufficient clamping force so be sure you use a Shimano or Campy type "internal cam" skewer.
I agree that your Colnage was probably inaccurately cold set as it is too old to have been spaced that way when manufactured but it should still function well. Just get the skewer tight enough.
04-18-06, 09:17 AM
There is no significant difference between 130 and 133 and 135mm. Once you tighten the wheel on there it will conform to the wheel size.
04-18-06, 09:03 PM
Thanks for all for responses. I will get a new skewer, as I definitely tightened my existing QR as tight as is possible. It was a bontrager skewer and came with a lemond which had vertical drop outs. Given the colnago has horizontal, maybe i need a stronger skewer as suggested by HillRider. Is it possible to get the axle nut for 9 speed hubs?
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