Originally Posted by
digger
I recently installed post mount TRP Spyres on an IS mount using IS to PM adapter on 160mm rotors (SM-MA-R160P/S).
When the adapter was mounted with arrow up, the pads only contacted half the rotor.
When the adapter is mounted upside down, then the pads contact the full rotor, I can see the top of the rotor level with the top of the pads and the barrel adjuster is pointed up at the cable run at a good angle.
It is the same situation for front and rear.
Is this normal or expected? Have I the wrong adaptors? I can’t seem to see a safety issue with this.
Thoughts?
How does the pad placement look on the other side of the caliper?
Front and rear IS adapters for the same size rotors are different sizes because front IS mounts are set at 160mm and rear IS mounts are set at 140mm.
Comparing a flipped 160mm rear adapter to a 160mm front adapter, I'd be surprised if the pads were contacting the rotor properly.
