I got some 4 Piston Shimano XT brakes, M8020 calipers with M8020 levers. My rear brake is acting up. On first pull, it feels great. But, if I continue to release and pull quickly, the brake gets spongier and spongier, only giving power when it gets near the bar eventually.
I bleed the brake a few times and changed the pads. But, no avail. The bike mechanic in me says it's gotta be air in the brake. But, I can't find any. Ive replaced the fluid completely and there are no bubbles. I did change the brake line last year after it got pinched then punctured in my frame.
I'm so dumbfounded. Any ideas?
I bleed the brake a few times and changed the pads. But, no avail. The bike mechanic in me says it's gotta be air in the brake. But, I can't find any. Ive replaced the fluid completely and there are no bubbles. I did change the brake line last year after it got pinched then punctured in my frame.
I'm so dumbfounded. Any ideas?