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My Guide brakes always have air in them whatever the scenario. I'm using an epic bleed solutions kit. I've done it on the bike and off the bike and followed these instructions : http://enduro-mtb.com/en/how-to-correctly-bleed-a-sram-guide-brake/ but it seems that the lever feels great in one orientation and then the leaver just come straight to the bar and my bite point has gone walkies. What am I doing wrong?
I don't bother altering the orientation of the levers when I bleed mine and I've never had a problem. Also using the epic kit.
After owning Avid and then SRAM brakes, that were both a nightmare to bleed, I've given up on them. Always run Shimano purely because you can bleed them in 30 seconds. Last new bike came with SRAM, sold brakes immediately and fitted XTs.
Just used the Sram video and it somehow worked, though when it said compress the leaver it was stuck all out so I was a twit and just tried forcing it (hope my bars are fine) and then gave up and just put the bike together. Now they work really well in every direction just got to hit the trails now. Left the brake up to hang, i'm confident all the air is out now.
So many possibilities. Redundant if you’re back up and braking now, but if you just can’t get rid of the air ever, the two big things to look for are leaks and traps.
Leaks can be things that are just not fastened or fitted properly, but they can also come about from things *overtightened* - deformed seals, crushed olives etc. The syringes are always worth looking at too - the rubber seals can’t stand either DOT or Mineral oil so begin degrading the moment you first fill them. There are syringes without rubber seals for such purposes but they aren’t as easy to find. Trickstuff sell them in their bleed kit.
Traps: wherever there’s a sharp change in direction or height there’s a potential air trap. If you really can’t quite get all the air out and you’re sure you don’t have leaks, take a look at your hose routing. Possibly unclipping the hose for a straighter line may help - or extreme ideas like hanging brakes off the bike from a repair stand.