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Ask an Expert BMW F650GS twin Rear Disc Technical

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Sep 09

Posts: 1

blueer6f says:

BMW F650GS twin Rear Disc


Original rear pads worn to minimum at 9000 miles expected, but rear disc below minimum at 9000 miles????

Dealer or BMW don't want to know, and their technical responses are somewhat insulting (to us Enginering types).............can anyone advise next course of action, as i cannot accept this and am not prepared to shell out £180 of my hard earned!


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  • Posted 4 years ago (15 May 2011 19:33)

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Mar 09

Posts: 8996

jaffa90 says:


Welcome blueer6f,we know the mileage but what year and warranty has it? Sounds to me that the disc metal is too soft.

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Feb 08

Posts: 1952


"can anyone advise next course of action, as i cannot accept this and am not prepared to shell out £180 of my hard earned!"


Do without a back brake perhaps? :laugh:

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Feb 09

Posts: 16

panbloke says:

BMW F650GS twin Rear Disc

This does not sound right, but usually if a disc wears this much it is because it is dragging. Assuming a centre stand or paddock stand of some sort, I would expect the wheel to make about two clear revolutions under its own weight if you give it a spin by hand. If it doesn't it is probably dragging, and using the bike like this has worn it out... I'm guessing you already know this though.......

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Nov 07

Posts: 2433

smidget says:


As it will depend on how you use the rear brake it will suffer high wear rate. 

Do you unintentionally rest your foot on the brake pedal?

I think you will find that BMW will not deal with this as a warranty claim is because both items are classed as consumables.

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Oct 12

Posts: 1

tonyfirshman says:

BMW F650GS twin rear disc

I have same model. I think BMW disk wear limits are too tight.  They also tell me replacement needed under 10,000 miles. Mind you they are 4mm worn at 20,000 so must replace!  The rear disk pads are tiny and last 5,000 miles.  That is the cause I think. Mine are not binding.

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