No rear brake again

stingray said:

The front brake has no effect on the rear caliper. None. All it can do is trigger the line lock "ABS modulator" called the hill hold feature to trap the pressure you applied to the rear brake. The front lever exerts zero force to the rear caliper. None. Some people can't grasp the linguistics difference in wording across the pond.

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It seems like the owner's manual must be wrong in this regard as it clearly states that is not the case. Using the latest AI when queried about whether front brake lever can actuate braking on the rear, it mirrors the owner's manual verbiage. stating, "this is for balanced braking." Perhaps you need to contact Triumph and have them correct this apparent misunderstanding of how their brakes actually work since the large majority of us that read the manual take it for gospel.

Could just jack the rear wheel up, hit the front brake and see if you can spin the rear with your hand. Simple quick test.