BMW 1150GS rear brake slight biting when off

[Nando654321]

Hi All

Any easy/ quick fixes for the below?

BMW 1150GS (2004)

If I put the bike on Centre Stand and move the rear wheel “in the air”, it moves but obvious that rear brake is there in some shape or form

Was free moving to a while back. Bike is well kept with only 35k miles on the clock

Any easy fixes welcome!

 

[theoneandonly]

https://www.ukgser.com/forums/showthread.php/571060-sticking-rear-master-cylinder

does this fit ? brake coming on on its' own ?

 

[Steptoe]

Stand at the rear righthand side of bike. Hold rear subframe/pannier rails. Push brake caliper with your foot. This should cause the caliper to “slide open”. Apply rear brake a few times to close up caliper. You should do this monthly if using the bike all year round, it keeps the caliper sliding pins from seizing. If the caliper doesn’t spread apart there’s your problem, a seized caliper…… but bare in mind the rear caliper has single sided pistons so there will be more friction than front calipers.

 

[Nando654321]

Stand at the rear righthand side of bike. Hold rear subframe/pannier rails. Push brake caliper with your foot. This should cause the caliper to “slide open”. Apply rear brake a few times to close up caliper. You should do this monthly if using the bike all year round, it keeps the caliper sliding pins from seizing. If the caliper doesn’t spread apart there’s your problem, a seized caliper…… but bare in mind the rear caliper has single sided pistons so there will be more friction than front calipers.

This


Thanks

Can you do a few quick photos by any chance? Where exactly my foot?

Will then do it tonight



Thanks

 

[ThreeDawg]

Well you can't really push the caliper with your foot from the other side as the wheel is in the way.

 

[Paul G (BHT)]

.... Where exactly my foot?

It's on the end of your leg, you have one on each side

 

[Nando654321]

Well you can't really push the caliper with your foot from the other side as the wheel is in the way.

Yeah I probably didn’t explain myself properly then…


On this picture, are we saying push hard with my foot where exactly? To which direction? How will that help the caliper!?!


Thanks

 

[Paul G (BHT)]

The two round bits that have BMW on them, push them towards the spokes.

After doing so make sure you 'pump' it back out using the brake pedal before riding.

 

[Steptoe]

Yeah I probably didn’t explain myself properly then…


On this picture, are we saying push hard with my foot where exactly? To which direction? How will that help the caliper!?!


Thanks

You are not standing at the rear of the bike, you are standing at the r/h SIDE of the bike at the rear, there is only one part of the caliper you can put your foot on

 

[Nando654321]

You are not standing at the rear of the bike, you are standing at the r/h SIDE of the bike at the rear, there is only one part of the caliper you can put your foot on

This and the comment by the guy before it

Thanks both

Indeed the wheel is moving a bit freer now


It’s only a couple of bolts so I may service it in the future, but that seems to have done the job for now



Thanks

 

[ELIMINATOR]

You should be able to wobble the caliper by hand if it's not seized.

 

[ELIMINATOR]

https://www.ukgser.com/forums/showthread.php/177661-1150-ABS-rear-claiper-phobia!

 

[DrFarkoff]

OE rubber lines can sometimes delaminate on the inner and turn into a one way valve

at that ages It's about time you had the lines changed to braided of whatever flavour you wish

Also when the handlebar line joins the connector at the headstock?

If they "bulge" at the metal pipe fitting when you pull the lever ?? CHANGE them ASAP

 

[Nando654321]

OE rubber lines can sometimes delaminate on the inner and turn into a one way valve

at that ages It's about time you had the lines changed to braided of whatever flavour you wish

Also when the handlebar line joins the connector at the headstock?

If they "bulge" at the metal pipe fitting when you pull the lever ?? CHANGE them ASAP

Yep agree with you and thanks for the link.

Indeed if this GS becomes a keeper (I’m thinking at the mo if I should swap for an 1150 GS Adventure) then yes braided hoses are definitely the way to go. 20 year old rubber hoses ain’t gonna be the best…

 

[hops]

Might be worth taking out the retaining pin and giving a clean up as it can rust up and stop the pads moving freely at the rear end. Also check the sliding pins on the caliper are clean and rust free.

 

[ELIMINATOR]

use red rubber grease inside the rubber boot