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Can a faulty master cylinder cause such a symptom?
Or will the feel of the brake improve as the pads bed in? (I've only ridden the bike, say 100 km's, after replacing disc and pads).
Yes, EBC! Sintered for no other reason that I'm under the impression that's the recommended choice for that system and my kind of use. But I could be wrong? No leaks, I'll try some hard stops next time out. I bled the line, but I'll go back and check the level. Thank you all so far!
Look at your masters. Sometimes they aren't level because of bar tilt angle and so on. Get them level and then fill if you can. If you can't do that, then fill to where the fluid touches the fill line at the lowest point and slowly get to just shy of half way, not more or you're putting too much fluid in.Too much fluid, hard level pull and lack of feel.
Try this. Going slowly on a back road apply a little brake, add some throttle and keep applying brake as necessary to keep your speed the same. After about 30 seconds of this, let off the lever and don't touch the lever until the rotor/pads cool down. That should break the pads in.
Change the brake fluid and hang the calipers above the master cyl. overnight with the bleeders cracked . The way BMW split the lines makes them difficult to bleed .
...but be careful with those sintered pads , they will score the stainless steel rotors .
wooden feel is usually due to having a master cylinder with too large a piston diameter. Perhaps you have a single caliper on a master cylinder made for two caliper?
The only time I experienced a Brembo with "wooden feel" was on a T3, and after inspection it had one stuck piston. This is unlikely in your case since you have already rebuilt the caliper.
OK , what year year is this bike ? All of the BMWs that used the P08 calipers , except for R80 GS models , are twin disc , so unless someone changed the master cylinder it should match up .