Originally Posted by
nfmisso
So your buddy broke your brakes - he should pay for the repair; UNLESS you have the bike upside down, in which case it is all your fault. Most likely there is air in the brake lines, which likely just need a bleed, and more fluid.
my buddy built bikes for a living for many many years at a toy store. neither of us have ever worked on hydraulic brakes though, the bike was upside down when he pulled the lever.
for some reason when i make a sharp turn i always hear the break rotor scrap on the break caliper. the forks flex or something weird when the bike leans. so we were adjusting the caliper trying to keep that from happening and he pulled in the lever when the bike was upside down. i see you need to buy a kit to bleed those brakes so i want to make sure that could have been a issue before i buy a kit.