I’ve read about this a few times, seems a known issue, albeit the numbers are small in comparison to those sold as the article states. This was the first one that came up on a search but there were quite a few other discussions.
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Thanks for that.
Had no idea it was a common issue.
No idea when I bought that particular chain set so I doubt I’d get anywhere warranty wise. Annoying!!
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MIght be worth trying it on, just in case? Contact Shimano sirect, say you bought it last year but don’t have the receipt.
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I did buy the exact same one for another bike of mine.
May be worth trying it on with them… they’re probably date stamped though right 
Pressure wash it, that will do it.
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Give it a go 
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Per the other comments, give it a go. Play on the fact that there’s a lot of noise online and it’s clearly a common manufacturing fault that shouldn’t be limited by the warranty period.
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Single leg drills on the way home!
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Playing with converting my CX winter bike for a bit of gravel. Rim brakes and 32mm wide tyres so nothing too extreme, but would like a wider rear block than the current 11-28. Figured out I need a new longer cage rear derailleur, current is Shimano 105 short cage, a ‘GS’ version will let me use a 32 rear cog.
Seems 105 10-speed GS derailleurs are rare! So any issue fitting Tiagra? Given the whole set-up is 8+ years old I’m sure a new Tiagra is probably an upgrade on old 105 anyway?
Also, available 11-32 cassettes ‘CS-HG500’ is technically a Gravel block, but I assume is still compatible with 10-speed road set-up.
I want to keep it simple an covert back to a winter road set-up by just changing wheels with the current 11-28 block on.
The current Tiagra (4700 I think) uses a different pull ratio to the rest of the Shimano range so you’d have to use Tiagra levers too.
I put a full Tiagra groupset on my main bike (was Campy) to make wheels interchangeable between it and my TT bike which is on 10sp SRAM. I’m very happy with it and I think it was about £250 with absolutely everything (brakes, cables, bottom bracket, the lot). If you only want a rear mech, that’s still a lot extra though.
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And a lot more faffing than I want to do. Will stick with the 28 rear for now and see how I get on.
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Anyone had a thru axle that doesnt undo?
Its not seized, as I turn it you can see the fork moving down the thread - but then it twangs and moves back. Almost like the thread inside is partly stripped so it has no traction.
Might have found one on sale, but realised it is the hanger that will stop me fitting a wider cassette. Don’t know where to start finding the right hanger to fit and old frame.
Could try a wolfs tooth and keep current equipment
Thanks @Jgav . Seems I need to educate myself a bit more. The blub for the Roadlink says a GS derailleur is needed anyway and it enables the 11-32 with no mod:
- 10s Cassette Compatibility:
- 11-32: Not Required (GS medium cage rear derailleur works)
- 11-34: Single (for double chainring be sure to not exceed the derailleur’s capacity)
Looking at the clearance between the current derailleur and the 28 cog, I can’t imagine that would be the case, unless it has some more clearance built in somehow. Might order some bits and have a play, but I really didn’t want to spend money on this, just fit some knobbly tyres (that I already had) and ride some trails.
Not sure really, I’d assumed that it will enable a short cage to go up to 32 tooth because Shimano are quite conservative on their compatibility anyway. Can get from Wiggle with returns if it’s not suitable. Then you’d just need whichever cassette you are looking for.
OK. So I’ve spent more time on this than I probably should. Seems from various sources that a Wolfs Tooth will allow me to fit a bigger cassette on a short reach derailleur. It’s not recommended because it cannot support running in the small/small (chain too slack) or big/big (potentially breaks stuff as chain is too tight).
Before doing anything, I shall ride on the 11-28 I have and see how uncomfortable it is. Would be nice to have a set-up I could just swap on off road wheels with a big cassette or road wheels with the current spread and not have to do anything else to the shifting.
Makes sense but should be rideable as long as you’re sensible with gear choices. It might be worth it for the £20 they cost rather than trying to replace harder to find items but depends if you need the lower gears or just HTFU
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I mentioned on your Strava feed let me know as I have a 172.5 ultregra R8000 chainset kicking about
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Sorry! Yes, saw that. Thank you very much.
I’ll let you know how I get on. I’ve submitted a warranty claim. See how it goes 
I’ve got another R800 on my other bike so can swap between the two to get me out of trouble at the moment
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