Okay so I was riding down my fav descent today on a beautiful morning when I noticed my back brake ( Magura Julie HP ) had a bit more travel in the lever. Just put it down to the cold, but by the time I got to the bottom pulling the lever didn't have stop me in the slightest ( made for an interesting stop! ). So I now dont have a rear brake. I did notice the rear brake having a bit more travel last week but just ignored it. Off to the LBS tomorrow - it's going to be expensive, isnt it?
No, check line for leaks, then fit new seals and bleed the system yourself. Cheap as chips.
Depends what is wrong. Have you ever maintained it? How old? Could be anything from low fluid levels to blown seals
Might just need new pads......
Maybe one had the friction material fall off?
Havent had them long, used Shimanos before. Checked the pads, got a bit of a phobia of trying to bleed brakes after a bad experience...
Presuming you don't have a leak, the problem is probably due to an air bubble in the system. This is normally no problem and is often a result of shortening the hoses. But if it, like here, makes itself noticeable, then...
Get yourself a Magura bleed kit, (around £27 RRP). Turn the lever so that it's horizontal to the ground. Remove the Bleed screw in the reservoir cap and insert an open syringe, (with the plunger removed). Fill the syringe with about 1 to 2 cm of oil. Turn the lever so that it is facing slightly upwards, (30-35°). Then start moving the lever blade slightly, trying to tease out the air that is probably in the master. As the air comes out it will be replaced by the oil in the syringe. After your sure that the air is out push the pads back into the caliper, put the lever back to horizontal, remove the syringe, (trying to spill as little oil as poss' replace the bleed screw, put lever back to desired angle. Job Done! Takes about 5 minutes, lasts for years! 8)