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Meta level.

Keep clicking into this expecting beer. Grr

Same, had forgotten about this and it popped up in my ‘following’ link.

Possibly from the ass ass

ENTCERICA

Sounds like some multi resistant strain of bacteria to me.

Ass! Ass! In.

Y u no sexy time?

No leaks either, gave the lever a few proper squeezes before disassembling. Someone on that reddit thread I linked to had used theirs for a year like this without issues so in all I think it’s probably just a cracked casing. Will be replacing lever anyway and the guy I bought it from has offered to try and get it replaced under warranty. It’s only a year old after all.

Olive, barb, hose and bolt all look ok

No sign of damage on the inside. 15 mm is right at the end of the metal flange that meets the olive

The grub screw and the hole where it goes. There’s nothing in there, just metal.

you might as well disassemble to see what it really does and educate us all

Well, here’s a try anyway. The crack is about 15mm from the bit the flanged bolt sits against.

Dura Ace Di2

Ouch! At least mine was tiagra. Will approach the new lever with some trepidation. Hoping to refit the hose with the already crushed olive still in place so hopefully won’t repeat the incident.

https://www.reddit.com/r/bikewrench/comments/i2thq1/shimano_str7020_what_caused_this_crack/?utm_source=amp&utm_medium=&utm_content=comments_view_all

I’m not alone.

Ordered a new lever, found one in stock which is lucky these days with shimano stuff.

that bolt doesn’t look flush, which it should be

Now that you mention it, could that little grub screw be the culprit? Wtf is it? The crack is right where it sits. Should I have backed this off before tightening, is it to prevent the bolt coming loose or something?

people just went ham at the bolt

Ahem

I guess I knew that. Was hoping the plastic was just a sleeve or something. Ok. New lever it is.

Ok so I’m obviously an idiot and have very possibly fucked my LH lever by over tightening the nut (not a euph). Heard a snap and then saw this crack in the plastic casing. There doesn’t appear to be a leak. Is the lever fucked? Will I die?

https://www.amazon.co.uk/Tbest-Hydraulic-Olive-Connecter-Insert/dp/B07YHQ51CG/ref=sr_1_1?dchild=1&keywords=tbest+bh90&qid=1615994496&sr=8-1

They´re cross compatible(ish) according to the internet. The bh90 has a different internal diameter, hence the proprietary barb, but the outside diameter is the same. As I understand it bh90 works with everything but possibly bh59 won't work with some more modern brakes. The olives are a little different, idk if that's why bh59 won't work with newer brakes? I've just fitted bh90 hose to a pair of mtb calipers which would have vome with bh59 hoses originally, no issues as far as I can tell.

I’ve also bought some bh90 hose off Amazon, the ad said “Tbest” but it was branded as something else when it arrived. Have fitted it and the included barbs + olives without issues but not actually bled and used the brakes yet.

really?

Yup. Cancer.

That frame is... interesting. Can't wait to see what you're going to do with it!