Cane Creek 110- Series IS Integrated Headset Stainless-Steel Bearing
Fits upper cup 41mm / lower cup is 52mm. The SHIS name is IS 41/28.6 upper & IS 52/40 lower.
This headset came off a 2019 Santa Cruz Bronson with very little use, excellent condition.
List price $130.
$65 plus shipping.