Hello- Have a 2000KLT with a few grinds in the rear rotor (1st set of pads wore out quicker than i would expect). Have gone to EBC sintered pads, but rear brake still doesn't seem good. Has anyone ever "turned" a bike rotor to smooth it out? Where was it done? I'm hoping this may improve braking.
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Rear Brake Rotor
- Thread starter rockers
- Start date
deilenberger
A bozo on the bus
rocker said:
I don't think you'll find too many places that can turn a motorcycle rotor (although I have heard of it being done on Ducati's)..
Reasons being:
1. Hard to mount in any normal brake lathe
2. Already thin - to remove any meaningful amount - you'll be down at the minimum thickness.
3. Chatter - the holes in the rotor tend to make them chatter when being turned.
I've BTDT with no success. Tried an early K bike rotor in an automotive brake lathe - chatter made it unusable, plus the tooling on an automotive lathe doesn't like the stainless steel that K bike rotors are made from. I also tried having one ground - with a "Blanchard" grinder (a rotary flat surface grinder) - the parallelism specs of a Blanchard grinder are +/- 0.001" - seems very good - but it can lead to thickness variations of 0.002" - which will make the brakes unusable (BTDT also).
Best bet - try for a good used one. Several places advertise in the MOA-ON who do used BMW parts. Or look on the IBMWR marketplace.
Best,
B
bmwmick
Guest
rocker said:
rocker,
Does your rear disc just have some grooves in it? How many miles do you have on your new pads? If the rear disc is grooved, it will take a few miles/medium -hard stops to seat the new pads. They have to wear to match the pattern on the disc. The brake pedal will feel spongy until they seat too.
Mick
