|Upgrade from 8spd to 9spd campy||rfrancisco|
Jun 12, 2003 5:44 PM
|Plan on getting Campy Centaur 9spd ergolevers, my question is can I use a Shimano Ultegra 9spd rear wheel with the new
shifter. Also what is size of the spacer between the gears
of the cassettes Campy and Shimano. Thank for any answers.
|re: Upgrade from 8spd to 9spd campy||MR_GRUMPY|
Jun 12, 2003 6:54 PM
|Any 9 speed Shimano wheel/cassette will work great with any Campy 9 speed shifters. If you need to know the Shimanno spacer thickness, look at .....shimano-europe.com.....
That site has all the PDF details and most of the instructions for all the products. You can even check out the fishing equipment.
Jun 12, 2003 7:31 PM
|Campy appears to be phasing 9 speed out of their system. I have 3 bikes that are Campy 9 speed, and parts are getting harder to find. I suspect in another year or two 9 will be gone. Since you're starting from scratch, why not start out with 10 speed? You can still use your Ultegra wheels, just buy a Wheels Accelerator or American Classic cassette, which will fit 10 cogs with Campy spacing onto your Shimano wheel.|
|more bad advice...||C-40|
Jun 14, 2003 4:00 AM
|Nickel and dimed conversions are rarely cost effective in the long run.
Shimano cog spacing is 4.32mm c-c. The cogs are 1.78mm thick with the "spacer" being 2.54mm. Todays's cassettes don't have very many spacers, however. The cogs are riveted together in groups, mounted on a carrier, so they cannot be taken apart and new spacers installed. Campy 9 speed cog spacing is 4.55mm c-c. The cogs are 1.75mm and the spacers are 2.8mm.
With this difference in spacing, the two cassettes are not a perfect match. Special adjustment of the rear derailleur is required to center it as perfectly as possible over the center cog to provide the best shifting.
Since 8 speed died in 1997, your equipment is plenty old. Serious riders would have worn it out long ago. I would either ride the 8 speed for the remainder of it's life and then start over with 10 speed, or bite the bullet now and just move on to 10 speed. It will be cheaper in the long run.
As others noted, you can get a 10 speed conversion cassette if you must use a shimano wheel. I would buy a cheaper Veloce hub and use a campy 10 cassette rather than buy a pricey conversion cassette.
Jun 14, 2003 2:25 PM
|"Serious riders would have worn it out long ago." My '98 Record 9s stuff is just coming up on 45K miles, and (chains and cassettes excepted, of course) it shows no signs of wearing out. However, I agree that one should always go with the latest stuff to keep the obsolescence monster at bay for as long as possible.|
|45,000 on chainrings??||C-40|
Jun 15, 2003 9:24 AM
|Wow, if you get 45K from everything but casettes and chains, you're doing a lot better than 99% of the folks on this site. No ergo lever rebuild or BB replacement?
Personally, I can't put near this many miles on a bike before the next generation of parts comes out. I only have time for 3-4K per year. Since 1995 I've had 8, 9 and 10 speed groups. Always sold all the old stuff immediately after the new groups were available and moved on.
I also tend to keep bikes only 1-3 years.