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Old 09-30-10, 11:24 PM   #1
BmoreDrew 
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Sram rival cassette coming loose..

Two weeks ago I bought a brand new Cannondale CAAD9-4.. rival/force mix. About 40 miles into my first ride the cassette comes loose, chain hops off and whole thing locks up. Next morning I took the bike to where I bought it, they tightened it, apologized and sent me on my way. I asked them if the hub body and lockring looked ok, they said yes!

Flash forward about 60 miles worth of riding and I stood up to hammer and the chain jumps to an easier gear.. cassette is once again loose, just not as bad as last time.

Obviously I'm going to take it to the shop again, but should I request a new lockring at minimum and not just tightening and sent on my way? Could that be the root of the problem?
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Old 09-30-10, 11:50 PM   #2
Chris_W
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Are they using a torque wrench to tighten the cassette? If so, and they are using it correctly, then it definitely sounds like something is wrong, which they should investigate further for you.
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Old 10-01-10, 12:33 AM   #3
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Definitely not right. If they keep screwing it up, take it to a reputable place for a second opinion.
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Old 10-01-10, 01:39 AM   #4
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Is your cassette actually loose this second time or are you just supposing it is because the chain skipped/miss-shifted/jumped/etc?

If your bike is new there is a break-in period where your shifting may go from perfect to all jacked up. Remove your rear wheel and visually and physically check to see that your cassette and lockring are loose before heading to the shop complaining about something that may be not broke.

-j
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Old 10-01-10, 02:03 AM   #5
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Originally Posted by Greenfieldja View Post
Is your cassette actually loose this second time or are you just supposing it is because the chain skipped/miss-shifted/jumped/etc?

If your bike is new there is a break-in period where your shifting may go from perfect to all jacked up. Remove your rear wheel and visually and physically check to see that your cassette and lockring are loose before heading to the shop complaining about something that may be not broke.

-j
Really? Maybe you get some of "those people" in here asking questions, but I'm not an idiot... I'm not going to walk in there *****ing and complaining without even confirming my problem. And as far as break-in, what is there to break-in? Cable and chain stretch? None of that should be enough to cause jumping/skipping like this.

I'll make sure they torque it this time, not sure if they did last time.
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Old 10-01-10, 02:13 AM   #6
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Really? Maybe you get some of "those people" in here asking questions, but I'm not an idiot... I'm not going to walk in there *****ing and complaining without even confirming my problem. And as far as break-in, what is there to break-in? Cable and chain stretch? None of that should be enough to cause jumping/skipping like this.

I'll make sure they torque it this time, not sure if they did last time.

Wow....good luck with that problem of yours.
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Old 10-01-10, 02:16 AM   #7
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Whatever, maybe I took it the wrong way. I'm frustrated I'm having this issue to begin with.
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Old 10-01-10, 05:03 AM   #8
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Really? Maybe you get some of "those people" in here asking questions, but I'm not an idiot... I'm not going to walk in there *****ing and complaining without even confirming my problem. And as far as break-in, what is there to break-in? Cable and chain stretch? None of that should be enough to cause jumping/skipping like this.

I'll make sure they torque it this time, not sure if they did last time.
More than some, so it's pretty normal to start with asking the basics, best way approach mechanics and other problems anyway. You come here to ask a question then snap on someone that answered you.

Greenfieldja supplied a perfectly valid response. There's no "Maybe" that you took it the wrong way. Based on your questions you're clearly not savvy in the mechanics or you wouldn't have asked the questions you did. If you were you would KNOW that break-in issues can indeed cause the issue you described.
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