I'm a bit depressed now, i ordered mine on wednesday as well and they're not here yet 🙁
Hey Winrya. Possible that when you cut the rear brake down, you didn't lose much actual fluid from the system and now it is a bit too full? Also check the little phillips screw on the lever that affects the free stroke.
Also try taking the wheel off, pads out, and using a tyre iron or your fingers on both sides of the piston to push it back in.
Otherwise, just detatch from the lever, then hold the cable directly upwards, then push the piston back in a smidge, then reattatch to lever.
5 pages long,Rose bikes must love this.
Just so you know, air in the system would demonstrate itself in a squidgy lever - i.e. the lever can be moved for a long way after making contact with the pad (because air is compressible, but fluid is not).
Cheers for the reply continuity. It does feel like the system is over full but wasn't sure that was possible. If I push one piston in the other comes back out.
Is removing from the lever the only way of removing fluid from the system?
I thought you had to push the pistons out so when you reconnect the hose pushing the piston in pushes air out. If i've already pushed it in I won't be able to do that if you understand what i'm trying to say lol
Bum. Nothing's ever easy is it? Post-mount calliper and IS mount bike. Now gotta find an adapter...
Turns out i just had too much fluid in the rear brake. Pushed the pistons out, took the lever off, pushed the pistons half way back, reattached hose and continued to push completely back. Now feel perfect.
My first impression is how powerful and solid they feel. Looking forward to my first proper ride tomorrow 🙂
Cheers for the advice, never for a minute thought id get a bargain set of brakes and get away with no labour charge 8)
@Dez
What you need? I have a XT 160mm Post>IS Rear if you wanted it.
Thanks Jamie - I think I've got the adapter. Will post back here if I have needs 🙂
I have need of a 180mm is to post, but ima wait and just use my 185mm avid rotors and mounts.
Grats on the self-fix Winrya - pretty satisfying eh!
Quick Q: I am reusing my old avid G3 rotors, and have got a bit of brake squeal on my first run.
Red rubber grease behind the pad?
Also, worth crosshatch sanding the rotors lightly then bedding in properly? (didnt get a chance before first ride)
Out of stock now. I've been dithering over buying some for a few days so hope they'll get them back in at the same price 😕
So what do you think of them?
Mine came with no adaptor, 2 inserts & 2 olives, a mug & 2 bags of sweats.
Resin pads were fitted without fins.
I've had to run them a bit further inboard to the M775's to make one finger braking comfortable, & rotating them on the bars to a comfortable angle has ment that my 2008?? silver XT dual release shifters are a bit to far rotated for my liking but I'll live with it.
Shortened both hoses when swopping round, bleed method in page 3 link worked well & can do one finger stoppies start out the box without any real effort made to bed the pads in.
From the saddle the reservoirs look a bit bulbous & the bright chrome is a bit to bright for my liking.
But for the money there nice strong brakes & feel nice but I wouldn't be changing my other M775's for M785's at the moment but I'll see how they go & which I prefer over time.
Phew - mine just shipped, thought I'd missed out as they were showing out of stock.
I've done 30 miles on them over the weekend and I'm blown away by their performance. Running 203 and 180mm discs the power and modulation is incredible. I assume they're running on sintered pads so I ordered some organic as ive always found sintered to be pretty rubbish, in this case they are perfect, even from cold.
I do have a little air in the system however:( doesn't effect normal use as the levers are perfectly firm but when I lift the bike onto the rear wheel to squeeze through tight spaces and press the levers they go soft so I'm assuming the air is rising into the levers. Will opening the valve on the lever and pushing fluid through from the caliper be enough to push this bit of air out?
Cheers
Do they come with mounting bolts at all folks?
Yes but only for 160mm post mount fork.
Thanks 🙂
Anyone know the weight on these XT brakes? Or the SLX for that matter?
And whats the difference between XT, SLX, Deore?
The XT has the adjustment screw which SLX doesn't have but whats the difference between SLX and Deore?
SLX has reach adjust. I think the caliper is the same for SLX/XT.
Also they differ in the materials and weight and construction. Forging vs machining vs e.t.c
Mine were shipped today, only just made it on these.....happy days!!!
Just shortened mine without bleeding using the guide a few pages back.
Perfect length and no air at all.
Mine's just shipped with an inclusion in the despatch note...
1 600600 NEUKUNDEN-GESCHENK
Woop! I love presence.
1 600600 NEUKUNDEN-GESCHENK .
8)
Ah, nice one - me too:
1 600600 NEUKUNDEN-GESCHENK .
2 523615 Continental Reifen GP4000 S faltbar black/black 700x23C
1 573437 Continental Rennrad-Schlauch 700x18-25mm 60/SV
1 1769793 SHIMANO HR-Scheibenbremse XT 785, 170cm, PM Sattel, Hebel rechts, o. Disc black
1 1769775 SHIMANO VR-Scheibenbremse XT 785, 100cm, PM Sattel, Hebel links, o. Disc black
Blimey they were a piece of wee-wee to install 🙂
Took pics, in case anyone needs them for the confidence booster. Suspect everyone will have sorted it by now though (excuse is, we've been decorating the house!)
Start by removing the brake pads and putting the yellow spacer block in the calliper in their place.
mark hose lengths (measure twice, cut once...). I used a small piece of tape.
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unscrew 8mm shroud nut
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gently (but firmly!) pull hose free (older brakes needed a little squeeze of the lever to get this to come out, these didn't)
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cut hose to length with very sharp knife (or cable cutters) - some fluid will spill from the cut end, so have something ready soak it.
The straighter and cleaner the cut the better as less likely to leak..
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using the supplied plastic clamp thingies, hold hose in a vice - [i]make sure the shroud nut and cover are down the caliper end of the hose[/i]
Olive should be 4mm from the end (although these seem to be a loose fit, so it's not crucial)
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Tap in the insert until flush
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push the hose into the (other) lever. Push firmly while doing up the shroud nut.
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A small amout of fuid may leak out. Tighten nut with the 8mm spanner.
Give the lever a couple of squeezes to check all is still firm.
If you're careful and don't shake the hose around too much, no fluid will be lose so you won't need to bleed.
Do the other hose. Replace pads. Fit to bike. Ride. Check for leaks 🙂
Dez, muchas gracias fella. one thing, the posts above mention pushing in the pistons a bit... did you do that...??...
Mine should be arriving today... good times, although i am looking forward to is the NEUKUNDEN-GESCHENK i have on my order sheet.
I want the bowl, but the mug would get used more.
Good work DezB.
Am I the only one to have messed this up then? 😳 Spent *several* hours yesterday to end up with one "crunchy" brake and one very squidgy brake.
Not sure what causes the notchy feel - is that the normal feel of Shimano brakes? The squidgy brake was completely my fault though - it was on and working, if slightly soft. Then, without reading any instructions on what to do in such circumstances, I managed to lose quite a lot of fluid out of the system when trying to bleed them. Now need one of those yellow funnel things to do it properly, I guess.
[s]Worst thing is[/s], at least it was all on mrsbunks bike, I've still got to do mine!
[i]Dez, muchas gracias fella. one thing, the posts above mention pushing in the pistons a bit... did you do that...??...[/i]
The yellow spacer block did that. Its slightly narrower than pads & spacer so I gave the lever a squeeze before cutting the hose. That moved the pistons out a tad.
@thebunk - you might get away with just injecting some fluid into the calliper. Have you got a syringe? (btw, my oil funnel was delivered next day by CRC, haven't need it yet though)
I've got an avid bleed kit with some syringes. I've also got some Shimano brake fluid that came with a plastic tube. If I attach that to the calliper and undo the bleed hole at the lever might that push the air out at the lever? Should the pistons be out slightly when doing this, or doesn't it matter?
Cheers for the advice. Believe it or not, I can do most jobs on the bike, but brakes and me just don't get on...
Mine arrived today - no bowl or mug though 🙁
Got mine today. One thing to note is that I didn't get a rear IS mounting adaptor for mine so I had to re-use stuff I already had. I think most people have recevied a rear IS adaptor with theirs?? I also got two sets of olives and inserts despite ordering another set seperately, which was a bit of a waste of £4.
As DezB says, really easy to fit and swap the hoses over. I cut my hoses down and didn't bother with the burping technique as I never have done before, and they seem fine. Really powerful right from the off. Should be awesome once their bedded in.
Oh, and I did get a mug!
Nice one Dez.
I just swapped the levers over, but will want to shorten the hoses soon as they're massively long - that'll be a great help.
Mine are working great but biting quite close to handlebar - freestroke adjuster bolt doesn't seem to do much. Anyone made theirs bite earlier in stroke?
[i] Anyone made theirs bite earlier in stroke?[/i]
Going to try injecting some fluid into the calliper later. Will report back.
Since I missed out first time round due to some sort of credit card cock up, where is the best alternative for cheap XTs? Bike24? Anyone else have them in stock?
Fortunateson09, they still have SLX's which are essentially XT's but diff material and no free stroke. Thinking back I would have got them instead.
DezB/Chakaping: Take the wheel out, pump the lever once or twice, put the wheel back in. It will transfer some fluid from the resevoir to the line and you will have a closer bite. The free stroke is a very fiddly and small-scale adjustment.
Will try that thanks, should have remembered that was Formula's recommended fix for dodgy The Ones.
Mine arrived this afternoon, no cup or bowl just he yellow arm band thing (but what do you want for free).
Shortened the rear hose following DezB's instructions had a bit of a faff as i haven't got a vice to help with the insert but other than that straight forwared and it works fine.
Went for a quick spin and they feel fine need to get out and give them a proper run.
I put the yellow thing into a mole wrench, placed the edge of the yellow thing on a table, then tapped. Worked fine.
Sad thing is i was using a set of mole grips as i couldn't find a 8mm spanner, doh. Just held it and went for brute force and ignorance, took several minutes but it worked. 😳
Thanks for that dez, made it nice and simple.
Much prefer the shorter levers to my 770s, but still not sold on the looks.
Got mine today with a mug and 2 bags of sweets. I asked for some olives etc so they sent me 2 sets foc.
Just about to tackle the first hose swap and to fit them on my epic. Report back shortly!
Do you definitely need this funnel thing for bleeding? Bit of a pain in the arse if you do, CRC don't have them in for 2 weeks.
UPDATE:
Now showing that they'll have the black ones in stock in a week.
Have ordered some in the hope that this is true.
