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Old 05-10-08, 10:22 PM   #1
Mondoman
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Having problems with Shimano cassette tool

I bought a Mavic Crossland wheelset, and am installing disc brake rotors on it. The wheels have Centerlock hubs, but I bought "Alligator" adapters, which have a central splined hole that slides onto the Centerlock wheel splines, and 6 short posts onto which slides the 6-hole rotor. A standard Shimano cassette/centerlock lockring holds everything in place. I successfully mounted the first rotor on my front wheel, but am having problems with the rear wheel. The Alligator, rotor, and lockring went on fine, but my off-brand (Torx) Shimano cassette tool w/guide pin (looks like Park FR-5G tool) is bottoming out on the end of the axle before I can fully tighten the lockring. Am I doing something wrong, or do I just need a better (deeper?) tool? Would the Park FR-5 tool (no guide pin) allow my axle through its central hole, thus giving me some more useful engagement depth for the tool splines?
The first photo shows the wheel + Alligator + disc + lockring; the second is a closeup of the lockring area, showing (in yellow) the approx depth at which my tool is bottoming out, and (in red) the approx working depth needed for a guide-less tool that can fit the axle through its central hole.
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File Type: jpg RearWheelDiscBrakeLockringcmp.jpg (92.2 KB, 19 views)
File Type: jpg RearWheelDiscBrakeLockringShowingToolDepthNeededcmp.jpg (98.3 KB, 28 views)

Last edited by Mondoman; 05-10-08 at 11:00 PM.
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Old 05-11-08, 11:33 AM   #2
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Or decrease the axle length on that side. If you're using quick release, it's probably sticking out too far anyway.
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Old 05-11-08, 11:50 AM   #3
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DMF - the amount of axle sticking out past the nut seems the same as on the front wheel and on other wheels that I've seen. That's what is making me think that I'm using the wrong tool (or perhaps doing something wrong). When you suggest reducing axle length, would that be by doing something like filing it down?
I'm going to stop by the bike shop today and see if another cassette tool would give me more depth. I think I only need another couple of mm of depth, so I'll cross my fingers for the easy solution.
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Old 05-11-08, 05:00 PM   #4
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Quote:
Originally Posted by Mondoman View Post
DMF - the amount of axle sticking out past the nut seems the same as on the front wheel and on other wheels that I've seen. That's what is making me think that I'm using the wrong tool (or perhaps doing something wrong). When you suggest reducing axle length, would that be by doing something like filing it down?
I'm going to stop by the bike shop today and see if another cassette tool would give me more depth. I think I only need another couple of mm of depth, so I'll cross my fingers for the easy solution.
I think you'll find that the FR-5 tool (no guide pin) is what you need. You could even use an FR-1, which is even deeper in the center.
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