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Discussion Starter #1
Sort of a dumb question since the rotors are stamped with "minimum thickness 4mm". But wait! How thick are new(ish) OEM rotors? Basically, I'd like to know how fast they've worn to the minimum. I've only got 35000 km on the Burg so far. Is that normal? Anyone running EBC rotors or is it OEM all the way? Thanks.
 

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Not sure but I'd think measuring just outside or in before the step down should give you the approx new measurement. Are you saying that your already at the minimum now?
 

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Discussion Starter #3
I was thinking about new brake lines/pads last week and thought I'd check the rotors first. They seemed to be 4mm thick. It didn't occur to me that the unswept portions would be the original thickness. Smart! I'll double check and report back.
 

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On my 2012 650 Executive with 3000 miles (4828km) with ZERO wear detectable as yet

Front rotors are .172" or 4.368mm

Rear Rotor is .214" or 5.436mm
 

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The '07 650 shop manual lists the "standard" thickness for the front rotor as 4.5 +/- 0.2 mm; the rear as 5.5 +/- 0.2 mm.

The "standard" values in the service specifications are not clearly defined in the 650 or 400 shop manuals, however my experience has been that it is what can be considered fully serviceable and "as new"...
 

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Discussion Starter #6
Got it. Talked to a local shop (racing specialists) while ordering the body panel that fell off:

Are the rotors gouged?
No.
Are they warped?
No.
Pads?
Halfway.
Any leaks?
None.
Bleed the system regularly
& stop worrying.

They offered to look at them if I really wanted to, though I admit there aren't any problems with braking at the moment. It doesn't sound like my rotors are that far off from the manual specs or other Burgmans.
 

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At your current mileage it is most unlikely the discs would require changing.

If you stick with OEM pads, you are unlikely to wear the discs significantly until you have been through 3 or 4 sets of pads. Depending on your riding style Burgmans are easy on brake pad life so you could be talking in excess of 120,000km !
 
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