ABS - REAR BRAKE PEDAL LOCK-UP

1olbull

Riding Motor Since 1950
Joined
Jun 17, 2012
Messages
23,269
Location
Tacoma, WA
Ride
2012 R3R "Kong" - 2011 R3R "YurMama"
I am not sure what the cause or remedy for this.
After riding some of the highest Colorado passes my rear ABS started activating on routine stops. Thinking it was air in the lines, I bled both front and rear brakes - the old fashion way and with no DealerTool.

The brakes worked good - for awhile. Ever since, intermittently and without warning, when applying my rear brakes the pedal locks up! Applying much additional foot pressure, they still do not fully activate.

This has caused me several pucker moments at higher speeds, both when busting twisties and once while following some mates passing a vehicle ahead which required some sharp slowing for the next vehicle and motors ahead of me.

My rear brakes will work properly for a few hours and then lock.
There is no warning and I never know when the pedal will suddenly lock-up!
I purchased the DealerTool and have bled both front and rear with it several times, following the manual procedure close as possible. The issue persists and had obviously adversely affected my spirited riding.

Suggestions and/or comments welcome . . .
 
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