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8sp. ultegra upgrade(2 posts)

8sp. ultegra upgradeDean123
Mar 29, 2001 4:21 AM
I just upgraded an older 7 sp 600 to an 8speed ultegra (STI, hub, cassette) For some reason, I can't seem to get it adjusted properly. Are there any tricks or things that I'm overlooking about compatibility? Thanks. Also any ideas for a one time bike box to ship via air?
re: 8sp. ultegra upgradepmf
Mar 29, 2001 5:26 AM
I did this once to a Cannondale 3.0 frame. It came with 7-speed RX-100. I had some 8-speed Ultegra STI parts from another bike so I transfered them. The axle on a 8/9-speed hub is wider than a 7-speed hub. So unless you have your frame adjusted (you can only do this with a steel frame I think), the wheel will not center correctly and the shifting will be a little off. I did get it to work OK (never perfect). You are using an 8-speed derailer too, right?

As far as adjusting the rear derailer, I've always followed the Shimano instructions with pretty good luck.