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M785 caliper replac...
 

M785 caliper replacement

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I have the almost inevitable microleak on my 785s - just looking for recommendations for a replacement caliper (without changing the levers or, ideally, hoses)

I'm assuming I'm limiting myself to shimano, with the hose constraint?

So which currently available, not too spendy, replacements are recommended, please?

Tia, as always, for your help!


 
Posted : 15/09/2022 6:14 pm
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Anything with a BH90 hose... unless you have enough spare hose to add a BH59 end...

You can see a decent list here ...
https://epicbleedsolutions.com/blogs/articles/bh59-or-bh90-which-insert-do-i-need


 
Posted : 15/09/2022 6:18 pm
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I bought some Hope RX4+'s as it seemed daft to buy more of the same...


 
Posted : 15/09/2022 6:25 pm
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Anything with a BH90 hose… unless you have enough spare hose to add a BH59 end

That's the kind of info I was hoping for - thank you!

Also:

I bought some Hope RX4+’s as it seemed daft to buy more of the same…

Is a very good point...


 
Posted : 15/09/2022 7:37 pm
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I'm still using some 2015 685/785's..
£35 or so a pop to replace that includes a new set of pads makes that pretty good value for me.


 
Posted : 15/09/2022 7:40 pm
 cp
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An SLX m7000 or 7100 will accept the banjo fitting you have on the hose for your XT caliper.

Under 30 quid including pads

https://winstanleysbikes.co.uk/shimano-slx-br-m7100-post-mount-disc-brake-caliper


 
Posted : 15/09/2022 9:03 pm
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Op,I swapped out sometime ago for RX4s,I've a pair(785s) gathering dust somewhere if of any interest give me a shout.
(Sorry,really wasn't meant to be 'Stealth)


 
Posted : 15/09/2022 9:49 pm
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@trap6 - have pm'd you...


 
Posted : 16/09/2022 11:35 am
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Under 30 quid including pads

So more like £20 in reality...


 
Posted : 16/09/2022 11:40 am
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I bought some Hope RX4+’s as it seemed daft to buy more of the same…

For balance, I have a leaking RX4 calliper.


 
Posted : 16/09/2022 12:31 pm
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Can you use an RX4 caliper with Shimano levers? I though Hope were all dot fluid.

I take that back - https://www.sjscycles.co.uk/brakes/hope-rx4plus-caliper-complete-pm-min-black/
"recommended for Shimano application"


 
Posted : 16/09/2022 12:35 pm
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Mine were fixed with a 9p o ring. Worth a try?


 
Posted : 16/09/2022 12:37 pm
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Mine were fixed with a 9p o ring. Worth a try?

Thanks zk - was that in the transfer port (or whatever its called)...? I haven't actually got mine apart yet...


 
Posted : 16/09/2022 12:51 pm
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Thanks zk – was that in the transfer port (or whatever its called)…? I haven’t actually got mine apart yet…

If you can afford the £30 I'd replace them first then take apart 😉 repair and keep as a spare.


 
Posted : 16/09/2022 12:52 pm
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Fadda,just too be clear are these rs785? Road?


 
Posted : 16/09/2022 7:22 pm
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Trap6, oh, nooo! It's the m785 mtb brakes that I need!


 
Posted : 16/09/2022 7:36 pm
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Oops.


 
Posted : 16/09/2022 7:42 pm
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@fadda
Here you go just make sure you put fresh pads in.
https://singletrackworld.com/forum/topic/shimano-transfer-port-o-ring-size/


 
Posted : 16/09/2022 8:27 pm