www.zxrworld.co.uk

ok here`s a good one that has foxed everyone i`ve asked, when cold my brake lever has a lot of travel ie almost back to the bar, but if i leave the bike out in the sun there is very little travel, also if i pour a kettle of hot water over the o/s front caliper it again has very little travel. the only explanation i can come up with is that the pistons on the o/s caliper are retracting in too far and heating it up causes the fluid to expand and push the piston back out.

air in the lines / trapped in the master cylinder.

always bleed the brakes while the bike is on the side stand.

I'm not surprised everyone is foxed........................I defo am.


kettle of hot water poured onto the brakes