AnotherS197GT
Serial Valve Dropper
S197 Brembo pads won't work with the new calipers and vice versa. The retaining holes aren't spaced the same.
S197 on the bottom, S550 on the top
Rotor vs rotor. S550 hat is much taller than the S197. The S550 caliper will not bolt up with the S550 rotor on the S197 hub. There isn't any room for it to slide between the rotor and spindle. The S550 rotor also contacts the dust shield, which I was too lazy to remove because I knew it wouldn't work anyway.
S550 rotor
r
S197 Rotor
Together
And caliper vs caliper. I didn't get any measurements because I forgot and it started sprinkling outside, so I wasn't going to stand in the rain and rip it all apart again. The angle might make it look like the S550 are way bigger than the S197, and it's true. They're huge compared to the S197 Brembo. I tried my best to get them lined up.
S197 on the bottom, S550 on the top
Rotor vs rotor. S550 hat is much taller than the S197. The S550 caliper will not bolt up with the S550 rotor on the S197 hub. There isn't any room for it to slide between the rotor and spindle. The S550 rotor also contacts the dust shield, which I was too lazy to remove because I knew it wouldn't work anyway.
S550 rotor
S197 Rotor
Together
And caliper vs caliper. I didn't get any measurements because I forgot and it started sprinkling outside, so I wasn't going to stand in the rain and rip it all apart again. The angle might make it look like the S550 are way bigger than the S197, and it's true. They're huge compared to the S197 Brembo. I tried my best to get them lined up.