At first, I was skeptical about the specs; single-piston, tiny pads & mechanical, but don't let that fool you. These brakes are so close to hydro modulation I couldn't quite tell the difference. The instructions recommend u couple a short flexy compression housing when used with drop-bars which added to the install time. If you want to get the most out of them, compression-less housing is a must! My only issue is the anodising scratches quite easily, so be careful when poking ur cable thru it. The breaks only actuate x1 piston on one side, while the inner pad stay static. I would not recommend using a stiff steel disc rotors. Use lighter and more flexy shimano ice-tech rotors as they allow more side flexing when the outer-pad pushes the disc towards the inner.

Love them so far. Way stronger than the brakes they replaced.

In the past I always used top end side pulls on rims. (the original disc brakes for bikes). When I changed my touring setup to cable actuated disc I was always disappointed with the amount of lever travel before real braking occurred. Constant fiddling did not improve. It was my hope that changing out the spyre trp calipers for the growtac equal would improve the brake feel. It did but not much. I will eventually go back to good quality side pulls.

Superbe brake-power and -modulation (with one finger), excellent build quality, easy to adjust and maintain. Reliable to 100%.

Way better than Hy/Rd I had used. Great stopping power and good throw in that the brake levers connect at the right place in the braking stroke vs collapsing into the bar. Super light also.