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rear spacing for 1980s bike(10 posts)

rear spacing for 1980s bikeQubeley
Jun 11, 2003 8:20 PM
Can someone tell me what is the rear spacing for road bikes from early 80s?
re: rear spacing for 1980s bikehdnoise
Jun 11, 2003 10:17 PM
Could be 120mm for 5 speed, 126mm for 6, etc. Also, if steel, a used bike could suffer bent chain stays and result in an odd spacing.....which isn't necessarily bad depending on the one cold setting the frame.... thus, there are several variables impacting the answer....
speaking of bending..Qubeley
Jun 12, 2003 5:42 AM
Can I bend a 126mm spacing to either 130mm or 120mm? only a few millimeter. Trying to update a cool old frame.
Yes, if steelMR_GRUMPY
Jun 12, 2003 5:47 AM
The dropouts will be off unless you align them.
speaking of bending..noveread
Jun 12, 2003 11:25 AM
Yes, but have a good shop do it so they can make sure the frame is aligned after it is spread. Going from 126 to 130mm requires spreading the rear spacing by about the width of a spoke on each side. Easily done. Last year I had a local shop spread a steel bianchi for me from 126 to 130. No problem, did a great job. Even complemented me on the condition of the bike!



Noveread
cool..I'll post my "secret project" once it's complete. nmQubeley
Jun 12, 2003 12:34 PM
New is oldchar
Jun 19, 2003 8:51 PM
Is that an old picture of the new Dura Ace crankset?
speaking of bending..hdnoise
Jun 12, 2003 7:47 PM
I am considering the same, what group are you contemplating?
speaking of bending..Qubeley
Jun 13, 2003 4:26 PM
I haven't decide exactly how to build up the bike. Probably 9-speed ultegra using 9-speed downtube shifters. Sort of a "modern retro" bike.
I am leaning toward a set of Heliums, my favorite wheels. This way I can switch wheels with the race bike for emergencies.
All modern wheels are 130mm, I need to bend it regardless.
126mm was the standard, except for "junk" bikes..nmMR_GRUMPY
Jun 12, 2003 4:57 AM