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Show Us Your Vintage Cannondale!

Old 12-15-20, 08:29 PM
  #1201  
zachleft
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Originally Posted by joejack951 View Post
Cannondales have stiffer chainstays than most steel frames but they will still flex easily enough to accommodate the wider hub. I did the calculation once, as someone had posted some fear-mongering link off the internet suggesting that bad things would happen if the dropouts were not realigned. IIRC, assuming the dropouts were perfectly straight to start (unlikely), they'd sit at ~0.5 degrees after being stretched. If you can eyeball that, you are better than me! As noted already, don't even think twice about it. It will be fine.



I can't let a question go by about going threadless on a vintage frame without commenting, or at least inserting a pic. Below is an SR500 I built up on a budget using some Mavic wheels (early 2000s but Mavic got lucky and made them with a freehub that accepts modern 11 speed cassettes) and Shimano 105 5800. The headset is something I designed allowing threadless stems to be cleanly fitted to threaded forks. These old fat-tubed Cannondales work well for this type of conversion, in my opinion. I left it uncut for this pic but the stem can be 'slammed' down on top of the upper bearing or fitted with up to 50mm of spacers as shown.

I think I'm in love
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Old 12-16-20, 10:43 AM
  #1202  
joejack951
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Originally Posted by zachleft View Post
I think I'm in love

Pop over to this thread if you want to read more about the headset/stem details: Threadless Conversion Headset
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Old 12-29-20, 02:39 PM
  #1203  
zachleft
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Originally Posted by jeffmendoza View Post

Just finished building up, the wheelset was the last piece.
'89 3.0 crit frame, size 58.
Originally an SR400, but the bottom bracket, headset, and stem are the only original parts left.
What set up do you have for cassette and crank? Is your dropout 126mm? I'm looking to buy one of these frames and the stock gearing is kind of limited at 52/42 crank and 13-23 freewheel, but the hub is only 126mm. It looks like you have a solid range of gears there.
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Old 12-29-20, 08:16 PM
  #1204  
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Originally Posted by zachleft View Post
What set up do you have for cassette and crank? Is your dropout 126mm? I'm looking to buy one of these frames and the stock gearing is kind of limited at 52/42 crank and 13-23 freewheel, but the hub is only 126mm. It looks like you have a solid range of gears there.
Shimano 6400 parts. FC-6400 53/39 crank. Hub is the 126mm freehub 7-speed that accepts both uniglide and hyperglide cassettes (FH-6401 I think). Cassette is a new HG-51 8 speed 11-28, but I'm not using the 11, so it's 13-28. I needed a 1mm cassette spacer as well. Also using 8-speed shifters (SL-6401) to match the spacing on the cassette.
39-28 is tough but manageable on the hills I have around here. The capacity is a bit more than the RD can wrap, the chain might sag a tad in small-small, but I don't ride like that of course.
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Old 12-29-20, 08:56 PM
  #1205  
zachleft
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Originally Posted by jeffmendoza View Post
Shimano 6400 parts. FC-6400 53/39 crank. Hub is the 126mm freehub 7-speed that accepts both uniglide and hyperglide cassettes (FH-6401 I think). Cassette is a new HG-51 8 speed 11-28, but I'm not using the 11, so it's 13-28. I needed a 1mm cassette spacer as well. Also using 8-speed shifters (SL-6401) to match the spacing on the cassette.
39-28 is tough but manageable on the hills I have around here. The capacity is a bit more than the RD can wrap, the chain might sag a tad in small-small, but I don't ride like that of course.
Thank you! How come you aren't using the 11? You just removed it and put the spacer in it's place..? Sorry I'm a noob
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Old 12-29-20, 09:10 PM
  #1206  
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Originally Posted by zachleft View Post
Thank you! How come you aren't using the 11? You just removed it and put the spacer in it's place..? Sorry I'm a noob
Only 7 speeds fit. The freehub body is for 7-speed cassettes.
https://www.sheldonbrown.com/k7.html
https://www.sheldonbrown.com/cribsheet-spacing.html
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Old 01-04-21, 11:34 PM
  #1207  
oldtimeyirv
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1988 sr500

This bike has been with me a while now. Picked it up at a swap meet in Chicago about 10 years ago. The original wheels were gnarly and it had lots of worn out components. I worked at a bike shop at the time, so I had help making it rideable with some donor parts... It looked appropriate for a broke 20 year old, rampaging around the city.

Finally decided to give it the love it deserves and dress it up. Very sentimental bike to me because of all the adventures. Usually very fast adventures, it doesn't do slow very well.

Still waiting on some parts, but most came off of a CAAD 9 I'm not riding at the minute. Brown bar tape, pedals and a new saddle should make it feel loved 🥰🤣



Last edited by oldtimeyirv; 01-04-21 at 11:37 PM.
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Old 01-13-21, 09:32 PM
  #1208  
velojym
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It might be wrong, but it could be oh-so right. Just playing with spare parts and this frame, though I won't do anything irreversible.
Gonna be, at least for a little bit, a 2x1. 53/39 by 16
Sort of a pseudo TT bike, but I'm guessing the geometry will never be perfect for that, other than being a little undersized for me. Just gonna have fun with it.


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