Hi. What's your experiences of rear brake fettling.... it was close to failing its not last year, and only after a bleed did the dealer get a tiny bit from it. It almost immediately reverts to zero brake. I've decided to change the rear master cylinder (they're only about £70) and the pads.... who else has done this and what was the outcome? Thanks
unless you have a minute air leak at a union, (aftermarket "copper" washers can be the culprit) then replacing the m/cylinder is the best course of action for starters, and correct pads also a good move depending on the state of the rear disc. Is it discoloured/dark compared to front discs?
You may be aware already however, the most efficient way to bleed the rear brake is to remove the caliper and sit it “upside down” on top of the disc. This allows the trapped air to rise and come out of the nipple. Mind you, as many people have said, the rear brake is not up to much anyway, even when perfectly bled.
The disc looks brand new. It's clearly hardly been touched in its 13,000 miles. I'll have a bit of an overhaul as I hate just using the front. I feel unsafe. It'll not be out much again this year, if at all... so a winter fix before the mot in May. I'll try all the connections too, but even on the day they cleaned/bled the system it was as good as useless. Thanks
Yes, the guy who bled it has being sorting Ducatis for 30 years.... it was rock hard on the day, but no/time amount of braking
I discovered I had a habit of riding with my foot resting on the rear brake lever, overheats/boils the fluid and cooks the seals in the master cylinder. Cure was to change the cylinder each time till I learned to keep my foot well away from the rear brake, might have been the rear caliper actually as that makes more sense
Be wary - my old 996 mc seized on causing the rear brake to overheat and bind slightly. Overtime both of the calliper bolts worked loose (probably not tightened by previous owner / dealer) and then they fell out causing it to then hit the rear spokes along with ripping out the valve stem. Luckily I was going about 10mph when this happened but it scared the living c__p out of me as the tyre almost instantly deflated to zero.
