What year did dropout spacing go from 126 to 130?
03-11-08, 09:10 AM
#1
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What year did dropout spacing go from 126 to 130?
I'm searching for a used road frame to commute on and I want to make sure that what I will buy one that has modern dropout spacing. However most people on craigslist and ebay just put the bike's year, make and model. Is there a model year that after which I can assume it will have modern dropout spacing?
Thanks
Thanks
03-11-08, 09:27 AM
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Early 90's would be my guess. I imagine there is a slight variance among bike brands.
Another easy thing to check is the number of rear cogs. I'm reasonably certain that all 6-speeds are 126mm. 7-speeds might be either and 8-speeds will be 130mm.
Another easy thing to check is the number of rear cogs. I'm reasonably certain that all 6-speeds are 126mm. 7-speeds might be either and 8-speeds will be 130mm.
03-11-08, 10:14 AM
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There were essentially NO 130 road hubs before 1989, when Shimano came out with DA 8S. The framebuilder I worked with was still spacing frames at 127.5 in 1994, only going to 130 in 1995.
Production frames from major manufacturers would be spaced according to their original equipment. 8S introductions: DA in 1989, 600 in 1992, 105 in 1994(?). There's a wee chance that if the same frame was used for DA, 600, and 105 that it would be one way or t'other, most likely 126 and relying on the rounded locknuts to spread the thing to 130, less likely 130 and speccing a special 600 or 105 130mm 7S hub.
If it's steel, you can spread it either with each insertion, or by cold setting. If you get it cheap enough, you can do the same with Al frames (here come the naysayers!).
Production frames from major manufacturers would be spaced according to their original equipment. 8S introductions: DA in 1989, 600 in 1992, 105 in 1994(?). There's a wee chance that if the same frame was used for DA, 600, and 105 that it would be one way or t'other, most likely 126 and relying on the rounded locknuts to spread the thing to 130, less likely 130 and speccing a special 600 or 105 130mm 7S hub.
If it's steel, you can spread it either with each insertion, or by cold setting. If you get it cheap enough, you can do the same with Al frames (here come the naysayers!).
03-11-08, 10:31 AM
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I have a '92 Trek bonded Al frame bike that is spaced 128 mm since the same frame came with either 105 7-speed (126 mm) or Ultegra 8-speed (130 mm) and the compromise spacing allowed both.
Last edited by HillRider; 03-11-08 at 11:00 AM.
03-11-08, 10:34 AM
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Right, almost no chance you'll find a pre-1989 road bike with 130mm spacing (possibly a tourer or something built for mountain bike hubs).
By the time Dura Ace went to 9-speed in 1997, virtually everything had been 8-speed for quite a while so it's pretty safe to say 1997 or later will be 130mm.
Anything later than 1989 and before 1997 is a gamble.
By the time Dura Ace went to 9-speed in 1997, virtually everything had been 8-speed for quite a while so it's pretty safe to say 1997 or later will be 130mm.
Anything later than 1989 and before 1997 is a gamble.
03-11-08, 11:39 AM
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I don't think it's a good idea to spread the dropouts on bonded or CF frames though.
03-11-08, 11:57 AM
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Thanks all. You're guys are the best. My 93 Trek 1100 is 126 (or at least not 130) and I wasn't sure how much closer to the present I needed to get. This will helps a lot. (It also explains the good deal I got it for in 1995.)
