[TrialsRider]

I read that some ABS systems require special equipment to effectively bleed the system irregardless of the process applied.

As to unintentionally trapping air inside the system, I kinda assumed we were bleeding the thing because there was already air throughout the system, as would be the case if you had just drilled out the caliper to extract a broken bleeder screw.

still puzzled though …if back flow could not happen when the brakes are released, wouldn’t that make your brakes one time use?