donned
Registered user
Hi All
I've just replaced the rear brake pads on my 2001 R1150GS and obviously they are a lot thicker than the knackerd ones that came off (first time I've changed the pads on this bike). I used the old pads when pushing the pistons all the way in and did the usual cleaning and greasing before installing the the new pads, however when it came to fit the rear wheel I ran into trouble. I can't get the disc to slot in, no matter how hard I try!
I think I've spotted the problem but would like a second opinion before I order a new caliper. I believe the little slider piston at the top of the picture (not the main pistons) has seized up and isn't allowing the floating part of the caliper to move towards the disc to compensate for the new pads. There is no movement in the "painted grey section" vs the "bare aluminium" mount, it seems seized solid at the top, with some movement at the bottom slider.
Has anyone seen or heard of this issue before and is it plausible? If so, is a new/used caliper the only option or are there rebuild kits available? I'm worried that even if I did manage to get the disc slotted in then the new pads would drag and wear unevenly?
Any input appreciated. Thanks
I've just replaced the rear brake pads on my 2001 R1150GS and obviously they are a lot thicker than the knackerd ones that came off (first time I've changed the pads on this bike). I used the old pads when pushing the pistons all the way in and did the usual cleaning and greasing before installing the the new pads, however when it came to fit the rear wheel I ran into trouble. I can't get the disc to slot in, no matter how hard I try!
I think I've spotted the problem but would like a second opinion before I order a new caliper. I believe the little slider piston at the top of the picture (not the main pistons) has seized up and isn't allowing the floating part of the caliper to move towards the disc to compensate for the new pads. There is no movement in the "painted grey section" vs the "bare aluminium" mount, it seems seized solid at the top, with some movement at the bottom slider.
Has anyone seen or heard of this issue before and is it plausible? If so, is a new/used caliper the only option or are there rebuild kits available? I'm worried that even if I did manage to get the disc slotted in then the new pads would drag and wear unevenly?
Any input appreciated. Thanks