Hi there, my brakes on my bike have been feeling spongey (but not like the feeling you get when air is in there) - and the lever seems to be getting closer to the bar. The pads are new the hoses are braided with no leaks, and I've tried bleeding them. still feels a bit spongey. I'm going to give one of these brake cylinder rebuild kits a go, but I can only seem to find guides on CALIPER rebuilds... anyone got any info.. or is it pretty straightforward. (I've done a bunch of work on my bike before) If they still feel spongey after this I'll take it to a mechanic to get looked at.