I am looking to replace the huge QR seatpost clamp with a bolt style clamp. Does anyone know the size?
Looks like the sensor 9Rs come with a 31.6 seat post. That usually translates to a 34.9 seat post clamp.
Sensor is indeed 34.9mm.
Is the seat post for sure 31.6?
Looking at getting a dropper.
Just stick it in granny and start grinding.
Correct. The s/post is 31.6mm OD.