1250 Rear Brake Bleeding

[GTMorgan]

Hi all, new here, picked up a 2020 TE Raylle the other day, all good except a lot of travel in the rear brake pedal, I'm used to poor back brakes coming from Ducati!!
I was about to give it a bleed, as I would with any other bike, then thought I'd check with current owners before I carry on.
I've read about needing diagnostic equipment for this? Do I actually need that for a quick bleed? Will it mess anything up if I do it the 'conventional' way?

Thanks.

 

[Mr Bean]

Hi all, new here, picked up a 2020 TE Raylle the other day, all good except a lot of travel in the rear brake pedal, I'm used to poor back brakes coming from Ducati!!
I was about to give it a bleed, as I would with any other bike, then thought I'd check with current owners before I carry on.
I've read about needing diagnostic equipment for this? Do I actually need that for a quick bleed? Will it mess anything up if I do it the 'conventional' way?

Thanks.

That's the way I do it - takes a couple of minutes.

 

[TIJ650]

You should probably add a GS911 to your Santa list too - for ABS bleed function. Stahlbus speed bleeder worthwhile too

 

[GTMorgan]

Yes, I've read about the GS911, I will have to get one at some point but I've spent enough/too much on buying the bike, that'll have to wait a while!
As long as I can do a regular bleed without harming anything, that'll have to do for now.

 

[TIJ650]

Many of the GSs suffer from air in the rear line. Refuted on here, but I’ve found actually using the rear brake helps. I historically only used the front brake (as linked anyway), but needed to bleed every year or so.

 

[TIJ650]

Yes, I've read about the GS911, I will have to get one at some point but I've spent enough/too much on buying the bike, that'll have to wait a while!
As long as I can do a regular bleed without harming anything, that'll have to do for now.

As long as you get the air out - you’ll be fine without ABS bleed. Speed bleeder is good if doing on your own

 

[GTMorgan]

Cheers, will get it bled. I trail braked a lot on my Multistrada and feel I need it on the GS, only covered a few hundred miles so it is early days.

 

[Fullchat]

Applying the rear brake pedal and locking it down and then leaving overnight will improve things. If you slacken off the bleed nipple you may release some air.

 

[Phil T]

Bleeding the brakes conventionally work perfectly well causing no faults.

Just don’t let the reservoir go dry and let air in.

Diagnostics will probably be required then, the same as if you had replaced a hydraulic brake part. There's a procedure to bleed the ABS servo valves. This drives the valves and pump to purge air bubbles out of the units that cant escape with normal bleeding. I have an OBDLinksLX with Motoscan app. It tells you what to do as you go through the process.

 

[B15ape1981]

Hi there, this might sound a bit obvious but have you checked the rear pads yet?? If the previous owner was a fan of the rear brake they really dont take much to wear out!! Ive been through ALOT....A good brake bleed wont do any harm though

 

[GTMorgan]

Pads are fine, bled the brake and it's lifted the bite point to a much better place, now only moves around 15mm before it starts to work, previously it was 30mm or more so, all good.