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7-9 Speed Cassette Conversion(4 posts)

7-9 Speed Cassette Conversionjulio
Jun 27, 2002 1:02 PM
I've got an older Cannondale with 7 speed Shimano 600 components and downtube shifters. My rear rim is really messed up and can't be trued. I was going to replace the rims but I can mailorder a new 105-mavic wheelset so cheap that it seems like the better route (as a bonus I'll get new hubs..). My frame is spaced 130mm and should fit the new hubs but I don't think my 7 speed cassette will fit on the 8-9 speed hub, anyone else had this problem? This is an old bike and I down want to upgrade the rest of the components. If my cassette won't fit the new hub is there another 7 speed one that will? I'm saving up for a nice road bike so I don't want to sink too much dough into this one but I still want to fix it. Thanks.
re: 7-9 Speed Cassette ConversionChen2
Jun 27, 2002 1:29 PM
If you don't want to convert to 9-speed my recommendation is to find someone who will rebuild your wheel(s) and just stay with the 7-speed components. Using the old hub and rebuilding with a new rim and new spokes should not be a big expense. When you eventually buy a new bike this one will make a good commuter/rainy-day bike.
~Al
Easily donethe dad
Jun 27, 2002 2:21 PM
A spacer is available that is exactly the right width to adapt your 7 speed cassette onto an 8/9 speed freehub body.
The only trick is, depending on the construction of your cassette, you have to remove the little bolts or grind the heads off of the rivets that hold your cassette together.
Easily donejulio
Jun 27, 2002 6:38 PM
thanks!