Rear brake lining thickness?

looking for lining thickness measurement of a new rear lining
and the minimum at which replacement is needed.

while I am at it...what about drum resurfacing? what is minimum thickness? what is a new drum measure to?


for a '74 Commando

thanks...
Eric

Good question. Does anyone have advice on making the rear drum brakes work as good as possible? What shoes are best & what's the best way to have them fit good etc. I'm going to be using rearsets on this 73 850 which if I remember from years passed renders the stoping power of the rear brake to a meer sugestion!!!

hi gtsun,best advise i can give is,have a machineist turn the drum in a lathe and make sure its perfectly round,fit oversize linings to the brake shoes and have them turned down to fit the drum perfectly,

Commando74 said:

looking for lining thickness measurement of a new rear lining
and the minimum at which replacement is needed.

while I am at it...what about drum resurfacing? what is minimum thickness? what is a new drum measure to?


for a '74 Commando

thanks...
Eric

Click to expand...

Hi same as you 74 Commando rearsets and rear brake loses a lot of braking effect. I always replace shoes when the brale arm approaches the vertical since maximum leverage is obtained for all practical purposes just before 90 degrees.(RGM have produced a rod setup am trying to get more info.)

Even modern sportbikes have weak rear brakes. It's the front brakes that do 90% of the braking and all you really want a rear brake to do is keep the back end in line and help out with trail braking.

A stock Norton rear drum will lock up the rear wheel under hard braking. What more do you want? My 900SS SP Ducati will not lock up the rear wheel. I see this as a good thing. The rear brake should give a steady, progressive feel but short of lock-up.

My advice is to spend the time, money and effort to upgrade the front brake and not worry about trying to improve the rear.