Designed to fit into a zero stack (44mm ID) head tube, but allow the use of a tapered steer fork.

HEADSET TYPE: Threadless Zero Stack Upper Cup & External Lower Cup
STEERER TUBE: Tapered 11/8" to 1.5"
MATERIAL: Alloy
STACK HEIGHT: 30.3mm
UPPER CUP: 44mm Flush Cup
LOWER CUP: 44mm External Cup
UPPER BEARING: 36° x 45° 11/8" ACB Sealed Bearing 41.0mm OD
LOWER BEARING: 36° x 45° 1.5" ACB Sealed Bearing 51.8mm OD

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