Mechanics and Fixing Any Questions Answered

Reuse non leaking o rings. Replace barbs and olives.

The problem you may have is that deore don't use a banjo fitting and slx do (not 100% on older slx or newest deore without checking but pretty sure I'm right) that means you'll likely need a new hose as the banjo ends are fixed on Shimano hoses, I think jagwire and possibly others do aftermarket replacement banjos thatb might be easier.

Yes thanks, saying it more succinctly than I did

I'm confused. I'll post some pics tomorrow to clarify the situation.

@snottyotter I see what you mean now. The deore and slx calipers are different.

Is this banjo part attached to the cable at factory then?

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Is this banjo part attached to the cable at factory then?

Yeah, what are you actually trying to do again? If you want to reuse that hose on a deore you can just cut off the banjo and use a suitable olive and barb assuming the hose is long enough, can't really go the other way without an aftermarket banjo, I think jagwire make one, you also might have the "wrong" hose, those slx use bh90 and older deore use bh59 which have a slightly different bore, in practice again they'll work OK though if you have the right barbs.

Other way round. I want to use a deore hose on the slx pictured. Can I just buy the banjo or do I need a new hose?
Thanks

New hose, or an aftermarket banjo, shimano don't make them separately. Can I ask why? There seems to be a hose attached to that brake? Too short?

Out of shot the cable has been cut

Thanks for the advice much appreciated and apologies if I wasn't making myself clear.

Older 10 speed Chris King hubs with 10s road cassette, what freehub spacer do I need?

CS6500 on classic I don’t think I have any spacer.

Should have a 1mm spacer assuming it's a 9/10 speed hub.

9/10 speed freehub:

9 speed cassette, no spacer
10 speed cassette, 1mm spacer

9/10/11 speed freehub:

9 speed cassette, 1.8mm spacer
10 speed cassette, 2.8mm spacer
11 speed cassette, no spacer

Makes sense, thanks.

Riding home on a very lightly used 6800 cassette, Shimano chain, and KMC quick link with a very lightly used chainset (all was new at the same time) and going full gas through Mile End suddenly I lost all resistance pedalling and I assumed that the chain had jumped off the big ring and when I looked down the chain had come apart and was dragging on the road with sparks coming from it. I had about a second and a half to think “that’s weird” and begin to hit the brakes before everything locked up and I was on the deck. Currently my wrists are fucked, bruised and cut and I’m feeling very sore. Trying to figure out what went wrong… it was a legit kmc link and it’s been used for about 1500km and been well looked after and used under load (Alpe du Zwift) without issue.

I’m trying to figure out what happened and I’ve figured that the chain must have split and then travelled up through the rear derailleur and then jammed as it went through the front mech stopping my pedalling and causing me to go head over heels… but that might be wrong. But what went wrong? Just a dodgy quick link, bad luck or something more sinister?

I’m in a lot of pain and seek succour from strangers on the Internet

It was the quick link that came apart - it had never been broken and refitted since I fitted it in mid november

Well that is certainly some rotten luck.

Have you managed to cool and compress your wrists? It should help them to not feel as sore the next few days from all the inflammation (I'm guessing this is correct procedure even with wrists, but perhaps another LFGSSer can confirm.)

No idea how that could have happened. How sure are you that the KMC quick link & chain are genuine? I've worked with mechanics who have seen broken quick links before, so they never use them. I've never had that experience personally.

I had a new KMC 10 speed chain snap recently, but to be fair, it was because the tab on the RD mounting sleeve had snapped, which took the tension out of the mech and the tension out of the chain. As a result the chain drifted into the spokes and one of the side plates of the chain was sheared / sliced by the spokes.

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Quick link installed in the correct direction?

Did it actually fail at the pin or just self open?

@Ndeipi Thanks! Yes, iced all of last night and now just sore but fuctional. Sore back and ribs but hey ho, it could've been worse. The shimano chain was 100% legit and the KMC links were bought from Wiggle so you'd like to think they weren't moody.
@superbagneres that sounds rough! Hope you were OK. I've removed the derailleur this morning to check everything over and all seems alright.
@scultura Yes! It self-opened... is that a thing that happens? Seems weird.

One thing I noticed on the ride was that the rear derailleur needed fine-tuning. I'd set it up to shift flawlessly with new cables but then the cables have obviously bedded-in and stretched a little. I could hear a rubbing as I was riding and thought to myself "I need to adjust the cable tension" when I get in to allow for stretch. I'm wondering if the chain having rubbed for the duration of the ride on rear sprockets might have led to the quick link being more vulnerable? It's not like I was out on a long ride, just 30km...

Yes self opening is a thing. Quick links have a specific install direction.

Yeah I’m aware that some quick links have a direction (Wipperman etc) but these KMC ones make no mention whatsoever of a direction so I assume these are fine either way? The model is “EPT reusable”

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Currently set like this so that the “11S” is the right way up as you face the chain!

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The KMC quick links are symmetrical so by definition can't be directional.

'xactly

right way up as you face the chain

Until it rolls over the chainring 🙃