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Replacement 3-gear cluster for 10sp cassette

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Replacement 3-gear cluster for 10sp cassette

Old 07-11-19, 03:40 PM
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treesloth
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Replacement 3-gear cluster for 10sp cassette

I have a barely-used 10sp cassette that I'd like to use again, but the largest cog is bent. I *think* it's a SRAM 1030 or 1050. It has 7 loose cogs with spacers and a cluster of 3 for the largest cogs. The bent cog is on the cluster, of course. Is it possible to replace just the cluster? I've asked a couple of shops and got blank stares. I hate to discard the whole thing since it probably had less than 200 miles when my magnificently powerful quads (or possibly crappy technique...) bent it, and the rest is perfectly good. I suppose I could try bending it back, but I'm a little skittish about metal fatigue.
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Old 07-11-19, 05:00 PM
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A good shop who wants your business should be able to call Sram to find out if they can order it. Sram spare parts are very expensive and might take some time to get. I’d try to get a good used cassette for eBay. It would be cheaper and faster.
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Old 07-11-19, 05:03 PM
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In the normal course of things it is exceedingly rare for one of the larger cogs of a cassette to be bent. What are the symptoms of this? How did this happen? Cassettes like yours mostly wear on the smaller cogs, not the larger ones. For a cassette to be bent after only 200 miles is almost unheard of unless the bike was being ridden by the Incredible Hulk on 100% gradient hills. It is so difficult to bend cassette cogs that it is almost impossible to bend a cog without having had a high speed fall involving major contact with roadside boulders
How are you feeling?
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Old 07-11-19, 05:38 PM
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AnkleWork
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Maybe carefully un-bend the cog.
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Old 07-11-19, 08:06 PM
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Originally Posted by AnkleWork View Post
Maybe carefully un-bend the cog.
I have had good luck using these to straighten out bent chainrings, should work on a cassette cog: https://www.amazon.com/d/Hand-Tools/...2L3/B0000BYD9A
I would also be interested to know how you bent it. Forced shift under power?
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Old 07-11-19, 10:40 PM
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couldn't it be straightened with a disc brake rotor straightener?
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Old 07-13-19, 04:05 PM
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If it is a steel cog, straighten and go. You won't hurt it.
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Old 07-14-19, 06:05 AM
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shelbyfv
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With that power you probably don't need the largest cog. Bend it so it doesn't interfere with the spokes or next smaller cog and ride on. Or buy a cassette for $30+/-.
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Old 07-14-19, 11:45 PM
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SRAM doesn't sell partial cogs. Shops were confused since it's pretty much not a thing anymore. I think you can still buy partials for some high end Campagnolo.
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