Upgrading RX100 rear cassette hub to 8-9-10 speed
05-23-10, 08:33 PM
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Upgrading RX100 rear cassette hub to 8-9-10 speed
I've got a set of decent wheels off of an older Cannondale with Shimano RX100 cassette hubs. The rear cassette is 7 speed, the hubs outer locknut width is 130mm, and there's enough space on the outer side of the freehub body to take the additional width; I tried an 8s cassette on it, and it (the cassette body) wasn't wide enough. Is there an 8-9-10 speed freehub body that will work with the RX100 hubset, and where can I buy one or what is the Shimano part number?
Thanks,
Pete
Thanks,
Pete
05-23-10, 08:51 PM
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I've got a set of decent wheels off of an older Cannondale with Shimano RX100 cassette hubs. The rear cassette is 7 speed, the hubs outer locknut width is 130mm, and there's enough space on the outer side of the freehub body to take the additional width; I tried an 8s cassette on it, and it (the cassette body) wasn't wide enough. Is there an 8-9-10 speed freehub body that will work with the RX100 hubset, and where can I buy one or what is the Shimano part number?
https://harriscyclery.net/product/tia...w2011-qc49.htm
should work fine.
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05-23-10, 08:52 PM
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Any Shimano 8/9/10-speed freehub body will fit and replace your 7-speed body. These bodies are available as replacement parts but are quite pricey as component parts. The only mis-match may be the dustcover and any seals on your current axle may not match the newer freehub. Sometimes it's even cheaper to buy a complete new hub and recover the freehub body than it is to buy the body alone.
One possibility is to haunt various bike shops and try to get a trashed 8/9/10-speed rear wheel and salvage the freehub body and matching cones/seals.
One possibility is to haunt various bike shops and try to get a trashed 8/9/10-speed rear wheel and salvage the freehub body and matching cones/seals.
05-24-10, 05:14 AM
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Thanks...so I won't run into any issues with bearing races of different types or anytyhing like that? It's been over a decade since my last stint as a shop mechanic and frankly I have no idea what the innards of a new(er) Shimano hub look like anymore...
Pete
Pete
05-24-10, 08:31 AM
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No, there will be no incompatibility with the bearings. All Shimano rear hubs use 9 x 1/4" loose balls per side and, AFAIK, always have.
05-24-10, 08:35 PM
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I would reccomend that you find an older freehub body for a 105 or Ultegra hub. Not all of the shimano bodies are the same.
https://www.loosescrews.com/index.cgi...d=115120313722
https://www.loosescrews.com/index.cgi...d=115120313722
05-25-10, 12:44 AM
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My Cannondal R600 comes with RX100 hubs. Currently has an 8-speed SRAM PG850 12-26T cassette on the rear wheel. Make sure the index rear shifter can handle the additional spockets.
