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Shimano gearing question from a Campy guy...(8 posts)

Shimano gearing question from a Campy guy...woodes
Mar 27, 2002 6:15 AM
I currently ride a Campy 10-speed equipped bike and may buy a Dura Ace 8-speed bike soon.

If the bike already has an 8-speed set up, is it possible to upgrade it to 9-speeds?

The frame is a 95 vintage, so am I wrong think the rear spacing would permit the install of Campy 10-speed????? If not, can you adjust a steel frame to accept 10-speeds?

re: Shimano gearing question from a Campy guy...slow-ron
Mar 27, 2002 6:36 AM
You can fit a shimano 9 speed cassette on the same freehub that you have for the 8 speed but you'll need new shifters & a chain, plus cranks & possibly derailleurs. (Can't re-build Shimano shifters with a different index like Campy.) Most people will tell you to get a new rear derailleur also but I've had success using older derailleurs with 9 speed. You do need new jockey wheels if you try this.

As for the frame spacing as long as it's 130 mm you can fit a Campy 10 in there. It has to be if you're running Dura-Ace 8 speed but even if it wasn't you could open up a steel frame (cold set).
Mar 27, 2002 6:42 AM
sorry, sorry, sorryslow-ron
Mar 27, 2002 7:11 AM
I forgot that the spacing on 9 speed is a little closer but that 8 speed shinamo cranks will still work with 9.
Inner chainringspeedisgood
Mar 27, 2002 7:23 AM
The inner chainring for 9-speeds is a tad closer to the big meat so the skinnier 9-speed chain doesn't get stuck in between 'em. Usually not a problem, but it did happen to me once on the trainer.
re: Shimano gearing question from a Campy guy...LC
Mar 27, 2002 12:50 PM
If it were any rear derailleur besides a 8 speed Dura Ace, then it would work with 9 speed, but just changing pulley wheels will not help in this case.
You're not wrongpmf1
Mar 27, 2002 6:58 AM
Any frame that had Shimano 8-v will be upgradable to 9-v (or Campy 10). Older frames had (I believe) 126 mm spaced drop-outs as opposed to the current 130 mm spaced drop-outs used today. So, the 1995 bike you're looking at is a modern bike that will accept the current componentry. You can buy upgrade "kits" for DA to convert it to 9-v for around $400.
Thanks for the replies (eom)woodes
Mar 27, 2002 7:02 AM