Rubber sealing in the TRP Spyre brake cable I just got my first bike with disk brakes (TRP Spyre) and have problem using them. When I jam the front brake, I get very little stopping power. To compare it, when I jam the front brakes of my other bike equipped with Campy Athena skeleton rim brakes, I can easily fall over the handle bars.

Upon closer inspection, it seems that I can not brake fully due to the rubber sealing (?) visible just below the barrel adjuster in the picture.



Is it safe to remove them? The TRP Spyre installation video available on their website does not show this part at all.

EDIT: To clarify some of the questions. The metal part with "Spyre" written on it is moving towards the fixed black part with barrel adjuster. By moving, it compresses the rubber boot. From the feel in wheel brake levers, I'd say that there is still movement possible, but the compressed rubber boot does not allow it as it is fully compressed.

The bike was bought in Wiggle, so no first month adjustments. I will try to ride a bit for pads to break in and then adjust the 3mm adjustment screw to see if it helps.
If the brake power is not very good, you should check the caliper alignment. The rubber sealing is certainly not the issue.

To do the alignment, it’s quite easy with the Spyre. Just release the two 5mm screws on the fork, ensure that the caliper can move from left to right, brake, then tighten the screws while braking.