Chris King® InSet™5 Headset Specifications
Headset Type Threadless InSet™ GripLock™ I5
Warranty 10 years
Upper head tube ID
49.61mm (+0, -.04)
Lower head tube ID
49.61mm (+0, -.04)
Upper cup minimum ream depth 16mm
Lower cup minimum ream depth 20mm
Fork crown seat OD 30.1 / 39.8 mm 1
Maximum press fit 0.075mm
Upper stack height
(upper cup + bearing cap)
Lower stack height
(lower cup + baseplate)
Stem cap screw torque 15 in. lbs
Weight 220 grams (with bolt and StarNut)

1 30.1 mm fork crown seat OD for 1/1-8 steer tube. This setup requires a 1.5 to 1-1/8 Devolution baseplate, sold separately.