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old DuraAce hub help needed...(5 posts)

old DuraAce hub help needed...alibi
Oct 30, 2002 10:04 AM
A friend recently purchased a nice frame with mostly older DuraAce components, but no wheels. It is equipped with 7 spd indexed down tube shifters, and he would like to build wheels on matching DA hubs.
What are the hubs that will mate up with these shifters? At what point did DuraAce change from freewheels to cassette systems? Are there other freewheels/cassettes that will work or is it DA only? Lastly, if someone could provide part numbers and OLD numbers for the hubs that would work, or a source for that info, it would be greatly appreciated.

Thanks much in advance.
Any Shimano 8/9 speed hub…TFerguson
Oct 30, 2002 10:21 AM
will take a 7 speed cassette as long as you install a 4.5 mm spacer first.

If you are looking to match the original, I will defer to others. I believe that they would need more information such as the year and any model numbers you might have for the parts you have.
re: old DuraAce hub help needed...Dave Hickey
Oct 30, 2002 11:27 AM
The rear hub model number is 7400 but as the above poster said, any 8-9 speed hub will work with a spacer. That is assuming it's a steel frame since the rear spacing is likely 126mm vs the 8/9 speed spacing at 130mm. It's not a problem to stretch the rear dropouts to fit. An aluminum frame is more difficult. Dura Ace cassette/freewheel spacing is no different than any other Shimano spacing so the rear hub doesn't have to be Dura Ace. The only word of caution I'd offer is watch for the first generation 8 speed Dura Ace hubs(7402????) as they used cassettes but the last cog screwed on instead of using a lockring like todays cassettes. The replacement cassettes are hard to find
re: old DuraAce hub help needed...gtx
Oct 30, 2002 9:06 PM
7 speed DA was either freewheel or cassette--your choice. In fact, there was an overlap with 6 speed DA as well--cassette or freewheel. 6 and 7 speed DA freewheels are super durable--I still use 'em on three of my bikes. It will be 126 spacing. I believe model # is 7400 as stated above--I use Campy Record hubs with the DA freewheels.
thanks all, good info....alibi
Oct 31, 2002 8:27 AM
Your excellent help plus some old catalogs and I've got it worked out. Thanks a lot.