- Jun 19, 2026
- Riding Since
- 2017
Hi all New here bit of back story I bought my bike 5 months ago 2016 Cb650f Abs
In thr black and white colour combo with only 5k miles ever since buying it the rear brakes been an huge issue it's fine when cold but after 5/10 minutes of riding it starts to binde and come on harder and harder but when you press the brake pedal the brake come off aka it releases pressure so because of this it cooked the disc and rear caliper
So I've replaced the disc caliper all pins, pads still nothing so I've just rebuilt the mastercylinder and it was filthy had so much gunk inside of it, cleaned all of it out new seals and spring thinking it would solve all of my problems but it's still doing the exact same so I'm at a loss there's literally nothing else I can replace.
I'm an ex car mechanic so I have a good idea of what I'm doing but this has completely baffled me so any help or pointer is more than welcome at this point I just wanted a low mileage example so I wouldn't have to deal with anything...
In thr black and white colour combo with only 5k miles ever since buying it the rear brakes been an huge issue it's fine when cold but after 5/10 minutes of riding it starts to binde and come on harder and harder but when you press the brake pedal the brake come off aka it releases pressure so because of this it cooked the disc and rear caliper
So I've replaced the disc caliper all pins, pads still nothing so I've just rebuilt the mastercylinder and it was filthy had so much gunk inside of it, cleaned all of it out new seals and spring thinking it would solve all of my problems but it's still doing the exact same so I'm at a loss there's literally nothing else I can replace.
I'm an ex car mechanic so I have a good idea of what I'm doing but this has completely baffled me so any help or pointer is more than welcome at this point I just wanted a low mileage example so I wouldn't have to deal with anything...
