Just got back from a 700 mile ride this weekend. Bike ran great ... but ... three times over the weekend, I grabbed the front brake and there was no pressure. This loss of pressure would happen only once and when I grabbed it quickly a second time, it was fine. But it happened three times and that is a little troubling. Any notion on why this might occur on my 2012 1200RT? Thanks for your input.
Wishing you a safe ride.
There are a some possibilities on this one--
Possibly a failing master cylinder or failing master cylinder piston cup. Maybe some reason that the front master cylinder is taking air into the cylinder bore while riding.
Or, possibly something wrong inside, or with, the ABS controller itself.
Or, possibly the front brake rotors are kicking the front brake pads back into the calipers enough to need one cycle to extend them before braking can begin. (this could be due to a loose front wheel on the axle, or failing wheel bearings, (or something wrong at the front wheel area)
This is a serious condition & needs to be found & addressed quickly.
How far did you need to ride before the problem re-occurred & how far had you ridden since the previous pressure loss occurrence?
Any rough road riding just before the brake pressure loss?
Is the front brake rotor color normal or are they bluish/purple looking?