56mm ZS Lower Assembly Orbit Z #57

HEADSET TYPE: Threadless Zero Stack
STEERER TUBE: Tapered 1.5″
MATERIAL: Alloy
LOWER CUP: 56mm Flush Cup
LOWER BEARING:36 x 45 1.5″ ACB Sealed Bearing 51.8mm OD

55mm ZS Lower Assembly SX Pro – Scott / Merida + Others

HEADSET TYPE: Threadless Zero Stack
STEERER TUBE: Tapered 1.5″
MATERIAL: Alloy
LOWER CUP: 55mm Flush Cup
LOWER BEARING: 36 x 45 1.5″ ACB Sealed Bearing 51.8mm OD

49mm External HS Lower – DX Pro 1.5

HEADSET TYPE: Threadless External Cup
STEERER TUBE: Tapered 1.5″
MATERIAL: Alloy
LOWER CUP: 49mm External Cup
LOWER BEARING: 36 x 45 1.5″ ACB Sealed Bearing 51.8mm OD

44mm External HS ITA Lower Assembly 1.5

HEADSET TYPE: Threadless External Cup
STEERER TUBE: Tapered 1.5″
MATERIAL: Alloy
LOWER CUP: 44mm External Cup
LOWER BEARING: 36 x 45 1.5″ ACB Sealed Bearing 51.8mm OD

49mm ZS Lower Assembly – 11/8″ Fork

HEADSET TYPE: Threadless Zero Stack
STEERER TUBE: Straight 11/8″
MATERIAL: Alloy
LOWER CUP: 49mm Flush Cup
LOWER BEARING:36 x 45 11/8″ ACB Sealed Bearing 41.0mm OD