Rear cassette spinning freely! Help
01-01-22, 08:26 PM
#26
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Like a few on here have said, your problem is the pawls got stuck, probably from too heavy of a grease. They'll eventually pop back out again once they either heat up, or the grease gives way. Although you've ridden it a few times since, it will most likely happen again, especially in cooler temps. Remove the freehub, clean out the old grease, and use something with a lighter weight. I don't know about Roval, but Mavic recommends a mineral oil. I find just mineral oil makes my freehub ridiculously loud, so used a small amount of white lithium grease and a bit of mineral oil, and it works like a charm. The whole job takes like 30 min. I'd do it sooner than later, because stuck pawls on a sprint sucks bad.
01-02-22, 07:49 PM
#27
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DT Swiss had a recent recall on some of their latest high end 2021 hubs (Ratchet EXP system) leading to loss of drive exactly as described here. Would be worth checking what hubs Roval are using as they could well be DT Swiss internals. There's an article about it here on Cycling Tips and it does mention Roval as an OEM fitment of these hubs
https://cyclingtips.com/2021/05/dt-s...vice-bulletin/
https://cyclingtips.com/2021/05/dt-s...vice-bulletin/
Just a note, I had NO warning noise or signs before having no drive/cassette spinning freely. I’ve been riding since within 5 miles of the house in case my wife has to pick me up again. No issues. Did a 40 mile ride yesterday with a low of 46, high 60 degrees. No issues. It was 55 degrees when it happened.
Thanks for all the help!
01-02-22, 08:00 PM
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Specialized said they haven’t heard of this problem. I’m responding to them tonight with this DT link. Hoping it will help.
Just a note, I had NO warning noise or signs before having no drive/cassette spinning freely. I’ve been riding since within 5 miles of the house in case my wife has to pick me up again. No issues. Did a 40 mile ride yesterday with a low of 46, high 60 degrees. No issues. It was 55 degrees when it happened.
Thanks for all the help!
Just a note, I had NO warning noise or signs before having no drive/cassette spinning freely. I’ve been riding since within 5 miles of the house in case my wife has to pick me up again. No issues. Did a 40 mile ride yesterday with a low of 46, high 60 degrees. No issues. It was 55 degrees when it happened.
Thanks for all the help!
01-02-22, 09:53 PM
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Like a few on here have said, your problem is the pawls got stuck, probably from too heavy of a grease. They'll eventually pop back out again once they either heat up, or the grease gives way. Although you've ridden it a few times since, it will most likely happen again, especially in cooler temps. Remove the freehub, clean out the old grease, and use something with a lighter weight. I don't know about Roval, but Mavic recommends a mineral oil. I find just mineral oil makes my freehub ridiculously loud, so used a small amount of white lithium grease and a bit of mineral oil, and it works like a charm. The whole job takes like 30 min. I'd do it sooner than later, because stuck pawls on a sprint sucks bad.
01-03-22, 08:39 AM
#30
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Do you in fact have that particular DT hub (EXP ratchet)? I have a set of wheels with those hubs which so far have been fine, but it is annoying. I looked for the product code to see if I was in the bad range but it looks like I need to take things apart to find it.
EDIT: this thread motivated me to take off the disc rotor and sure enough I have a “bad” one. I am getting a free replacement kit from DT Swiss.. they were super prompt about it.
EDIT: this thread motivated me to take off the disc rotor and sure enough I have a “bad” one. I am getting a free replacement kit from DT Swiss.. they were super prompt about it.
Last edited by scottfsmith; 01-03-22 at 10:17 AM.
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01-03-22, 05:03 PM
#31
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Do you in fact have that particular DT hub (EXP ratchet)? I have a set of wheels with those hubs which so far have been fine, but it is annoying. I looked for the product code to see if I was in the bad range but it looks like I need to take things apart to find it.
EDIT: this thread motivated me to take off the disc rotor and sure enough I have a “bad” one. I am getting a free replacement kit from DT Swiss.. they were super prompt about it.
EDIT: this thread motivated me to take off the disc rotor and sure enough I have a “bad” one. I am getting a free replacement kit from DT Swiss.. they were super prompt about it.
Specialized confirmed they’re using DT Swiss hubs and have seen the problem. My local bike shop cleaned a towel fun of grease off the insides! Took all of 5 minutes. Should be good, though they recommend periodic cleaning, Thanks again!
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