Warped discs have been raised on here a couple of times in the passed so I thought I might be useful if I posted these pictures of the recently fixed brakes on my 1200RT
My bike started to develop vibration on the front brake lever at around 4000 miles; at first it was only apparent at 60mph + speeds with extended brake applications (like when braking coming down out of mountains)
By 8000 miles the vibration was much worse and apparent at all speeds. It took a while getting the parts, but this is what was fitted by my local dealer just before the warranty ran out (sorry, no part numbers). The new discs most definitely now float on the mountings and can be pushed from side to side by a couple of millimetres. Proper floating discs, lovely!
This view needs little explanation, noticeable is the larger washer under the Torx screw.
A much more telling side view shows the edges of a special spring washer between the disc and its mountings (bronze colored) also noticeable is the disc material has been milled out to allow for the new fittings.
View from the back, showing the uncovered edge of the spring washer
The front brake now seems better than when the bike was new, the brake no longer seems to want to snatch and grab, the brake just seems much more gentle in operation, so far I’m very impressed, the bikes transformed, I just hope it stays this good.
My bike started to develop vibration on the front brake lever at around 4000 miles; at first it was only apparent at 60mph + speeds with extended brake applications (like when braking coming down out of mountains)
By 8000 miles the vibration was much worse and apparent at all speeds. It took a while getting the parts, but this is what was fitted by my local dealer just before the warranty ran out (sorry, no part numbers). The new discs most definitely now float on the mountings and can be pushed from side to side by a couple of millimetres. Proper floating discs, lovely!
This view needs little explanation, noticeable is the larger washer under the Torx screw.
A much more telling side view shows the edges of a special spring washer between the disc and its mountings (bronze colored) also noticeable is the disc material has been milled out to allow for the new fittings.
View from the back, showing the uncovered edge of the spring washer
The front brake now seems better than when the bike was new, the brake no longer seems to want to snatch and grab, the brake just seems much more gentle in operation, so far I’m very impressed, the bikes transformed, I just hope it stays this good.
