Rear brakes

[Septic]

Last friday i fitted some new rear brake pads
cleaning the caliper mount and put some copper grease on the
slidind bits where the pads sit.But the rear disc gets quite hot
is this normal as i didnt check on the old pads.

p.s the brakes seam working fine with no binding.

thanks for you help chaps

stevie

 

[oblertone]

Heat !

Brakes work by using friction to slow the bike down i.e. pad gripping disc. Some of this energy gets converted into heat, so the bit's get hot. If the brake is not 'dragging' on the disc, then it's fine. If it's not getting hot after braking, then you need to worry ....

 

[jimbo]

 Some of this energy gets converted into heat

Basically all the energy is converted into heat. That's what fiction is all about. All that kinetic energy (ie a mass moving) becomes heat.

Most pads will run OK up to several hundred degree C, before cooking, so I wouldn't use your fingers to check the temp of the discs - you hear the sizzling noise of the skin before you feel any pain....

J

 

[Steptoe]

Last friday i fitted some new rear brake pads
cleaning the caliper mount and put some copper grease on the
slidind bits where the pads sit.But the rear disc gets quite hot
is this normal as i didnt check on the old pads.

p.s the brakes seam working fine with no binding.

thanks for you help chaps

stevie

depends when you check them for heat -- take it for a short ride without touching the rear brake, then feel it.
But if the wheel turns around freely by hand, then "generaly" its OK.