AustinBike Posted March 11, 2019 Share Posted March 11, 2019 I have been having issues with a cassette that keeps coming loose on my FS bike. Yesterday I had to do several mid-ride adjustments before I could get back to the car where I had a lock ring tool. Is it advisable to use locktite? The free hub is a Chris King steel (not aluminum) and the cassette is a Sun Race 11T-42T. Quote Link to comment Share on other sites More sharing options...
csmceuen Posted March 11, 2019 Share Posted March 11, 2019 I would try it with the purple first since there is alot of contact area the regular strength could be hard to get off later down the road. That being said I did this and had no problems with it other than struggling when it cam to removing it. Quote Link to comment Share on other sites More sharing options...
spicewookie Posted March 11, 2019 Share Posted March 11, 2019 Tack weld. I gotta guy. 1 Quote Link to comment Share on other sites More sharing options...
Mattlikesbikes Posted March 11, 2019 Share Posted March 11, 2019 The cog retainer on a new to me CK SS hub backed off on a ride last week. That was a first for me. I pulled out the torque wrench and put it back on, but will probably go to blue loctite if it doesn't stay tight. Quote Link to comment Share on other sites More sharing options...
TheX Posted March 11, 2019 Share Posted March 11, 2019 I always use blue when assembling things like that. Quote Link to comment Share on other sites More sharing options...
Anita Handle Posted March 11, 2019 Share Posted March 11, 2019 I've always torqued to the specified level (40Nm iirc) and have never had one back off. You're using a torque wrench? I don't have King's so perhaps there's something with them. Can't trust that Chinese crap. 😜 Quote Link to comment Share on other sites More sharing options...
mack_turtle Posted March 11, 2019 Share Posted March 11, 2019 (edited) Loctite makes a lot of products. The light blue 242 product should do it without being dangerously difficult to remove. However, all lock rings should stay secure when properly tightened. Use a torque wrench. If it still comes loose, there may be something else going on. Is the cassette missing a spacer? Edited March 11, 2019 by mack_turtle 3 Quote Link to comment Share on other sites More sharing options...
AustinBike Posted March 11, 2019 Author Share Posted March 11, 2019 I am going to try the loctite tomorrow. No spacers missing. Need to see if my torque wrench has an adapter to go that large, I have a smaller wrench. Quote Link to comment Share on other sites More sharing options...
Teamsloan Posted March 11, 2019 Share Posted March 11, 2019 (edited) I had that happen once out at WC. I carry a lockring tool on every ride now even though it hasn't happened again since. +1 on the 242 Blue locktite. Edited March 11, 2019 by Teamsloan Quote Link to comment Share on other sites More sharing options...
Anita Handle Posted March 11, 2019 Share Posted March 11, 2019 (edited) 1 hour ago, AustinBike said: Need to see if my torque wrench has an adapter to go that large, I have a smaller wrench. Ok newb, come back when you've torqued it to 40Nm. It's more than you think. Edited March 11, 2019 by Anita Handle 1 Quote Link to comment Share on other sites More sharing options...
Big_papa_nuts Posted March 12, 2019 Share Posted March 12, 2019 9 hours ago, mack_turtle said: Loctite makes a lot of products. The light blue 242 product should do it without being dangerously difficult to remove. However, all lock rings should stay secure when properly tightened. Use a torque wrench. If it still comes loose, there may be something else going on. Is the cassette missing a spacer? Thank you. 7 hours ago, Anita Handle said: Ok newb, come back when you've torqued it to 40Nm. It's more than you think. This. Most cassette lock rings have a knurled interface that should never come bloomed so if it's properly tightened and it comes loose something is wrong. 1 Quote Link to comment Share on other sites More sharing options...
Kyle Posted March 12, 2019 Share Posted March 12, 2019 I have properly torqued a cassette lock ring exactly once, and then never again after it took forever to get off. Never had one come loose. Is your lock ring just worn out? Quote Link to comment Share on other sites More sharing options...
AustinBike Posted March 12, 2019 Author Share Posted March 12, 2019 It was a pretty new cassette, less than 6 months old, but a cheap brand (Sun Race). Quote Link to comment Share on other sites More sharing options...
Huskychuck Posted March 12, 2019 Share Posted March 12, 2019 Are you using the Chris King lock Ring? If I’m not mistaken it’s a proprietary item with its own thread pitch different than Shimano/Sunrace Quote Link to comment Share on other sites More sharing options...
RidingAgain Posted March 12, 2019 Share Posted March 12, 2019 1 hour ago, AustinBike said: It was a pretty new cassette, less than 6 months old, but a cheap brand (Sun Race). I'm going to buy two 11 x 42 cassettes so been researching reviews on Sunrace and can't say I've come across this particular problem. But they do have two different models, the CSMS3, which is the cheaper one and has poor reviews about quick wear, and then the CSMX3, which has very good reviews. Quote Link to comment Share on other sites More sharing options...
AustinBike Posted March 12, 2019 Author Share Posted March 12, 2019 37 minutes ago, Huskychuck said: Are you using the Chris King lock Ring? If I’m not mistaken it’s a proprietary item with its own thread pitch different than Shimano/Sunrace Nope, using the one that came with the cassette. Let me dig into that, good to know. Quote Link to comment Share on other sites More sharing options...
Mattlikesbikes Posted March 12, 2019 Share Posted March 12, 2019 45 minutes ago, Huskychuck said: Are you using the Chris King lock Ring? If I’m not mistaken it’s a proprietary item with its own thread pitch different than Shimano/Sunrace The SS hub has a proprietary design though also works with the standard style lock ring. The normal geared hub works with standard lockrings, though king does sell their own too. My guess is the cassette slid on and you tightened it less than design torque and the cassette and spacers compressed in with time, narrowing the whole assembly. Certainly possible if portions of the cassette are pinned together. Just reassemble and torque it, it'll be fine. Quote Link to comment Share on other sites More sharing options...
AustinBike Posted March 12, 2019 Author Share Posted March 12, 2019 56 minutes ago, Mattlikesbikes said: The SS hub has a proprietary design though also works with the standard style lock ring. The normal geared hub works with standard lockrings, though king does sell their own too. My guess is the cassette slid on and you tightened it less than design torque and the cassette and spacers compressed in with time, narrowing the whole assembly. Certainly possible if portions of the cassette are pinned together. Just reassemble and torque it, it'll be fine. This has been an ongoing issue. Started last fall. Cranked it down on a road trip. Then again in December. Then January. Now this month. Not a one time occurrence, there is a pattern here. Quote Link to comment Share on other sites More sharing options...
mack_turtle Posted March 12, 2019 Share Posted March 12, 2019 You put a Sunrace cassette on a Chris King hub? Blasphemy! Quote Link to comment Share on other sites More sharing options...
Barry Posted March 12, 2019 Share Posted March 12, 2019 Actually both Sunrace and Box have some quite decent wide range and well spaced 11 speed options. Quote Link to comment Share on other sites More sharing options...
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