Hi everyone tried to do a search to see if anyoneelse has had rear brake fade but couldn't find owt specific. My xt660r suffers from rear brake fade only when doing runs over Hardknott pass or Wrynose pass in Cumbria. The rear pedal goes all the way down and no braking at all. front brake is ok (thank goodness). I'm assuming having a few yams in the past and never such an issue with them, that it's because the brake line runs behind the right hand side of the swing arm very near the right hand upswept part of the exhaust pipe?? Because these fell passes are ridden relatively slowly due to steep gradients I'm also assuming the brake line gets warm and the fluid just looses hydraulic viscosity but no visible loss of fluid? Then braking returns once the bike is. Parked for a while and everything cools down? Any advice before I pull my rear brake to bits and buy shiney new bits please? ��ta muchly.