If you were closer to Norfolk - your could have plugged it into my GS-911 diagnostics - these K series have auto "hand brakes" that play up (as Fazerruss has already mentioned).
My first port of call would be re bleeding it - if the hoses are collapsing - you will see if the fluid runs free - when you bleed it.
All bikes will have joined brakes and ABS into the future - oh what fun!
If you weren’t on the brakes just prior then I would be suspecting the electronics over a hydraulic issue. Calliper can’t stick in under hydraulics if it hasn’t been applied in the first place.
My first GS had a couple issues with the linked brakes - it had a habit of locking up the rear wheel if you applied any rear brake at the same tine as the lever. I guess the ABS wasn’t coping properly. My adventure seems a lot better but I guess there have been a bunch of software pumps over the years.
I bet it’s a bit unsettling though - apart from the handling issues for you I’m not sure the final drive will appreciate a sudden “under rotation” either.
Never ridden a bike with joined brakes, but the idea of it makes me not like it. It sounds like a rule that's been dreamed up by someone who has never ridden a bike in their life.I'm not sure if I like it or not! It definitely makes me lazy which is no good thing when reverting to a conventional brake system.
Factory originals 2005. I have had cars through the workshop where the brakes wouldn't release. That was down to internal degradation of the flexis causing a one way valve effect.
That was my understanding, the ABS etc can only defeat the pressure, not apply it.
Never ridden a bike with joined brakes, but the idea of it makes me not like it. It sounds like a rule that's been dreamed up by someone who has never ridden a bike in their life.
I'll stick to by individually applied front and rear... I do like ABS on my yamaha though, it works quite well in the background, only felt it a little in the wet on the rear.
ABS can apply pressure. It will release but then needs to apply it after, over and over. ABS systems have a pump to generate pressure, otherwise once it's released you've got no brake pressure.
Sounds like some fault in the ABS system, not a failee caliper or hose. I've had similar with cars.
Does it have a foot brake lever? If so i would look for a position sensor there that may be adjustable.
That was my understanding, the ABS etc can only defeat the pressure, not apply it. Last night it was maybe a mile or so prior that I had applied the brakes.
I had that 10 plus years ago on my 2001 R1100S, £1000+ Loved the bike, bought direct from BMW in Dundee as an ex demonstrator.Mates BMW had brake problem that needed ABS unit replacing - eye watering amount.