Origin8 Twistr 1-1/8"/1.5" Tapered Internal/External Headset for ZS44/EC44 - Black L/XL Headset: Integrated w/ Gyro Holes

Headset: Integrated w/ Gyro Holes

Alloy upright city handlebar and stem

Steerer Tube: 1-1/8" - 1

SRAM engineered the oversized DUB spindle to work across every bottom bracket standard

Diameter: 28

Origin8 Twistr 1-1/8"/1.5" Tapered Internal/External Headset for ZS44/EC44 - Black L/XL Headset: Integrated w/ Gyro HolesThis is a sealed cartridge headset to fit frames with 44mm internal semi integarated tapered headtubes. This is size ZS44 EC44 for a 40mm race and 28. 6mm upper steer tube system. Size: 1 1 8" to 1. 5" Taper SHIS: ZS44 28. 6 EC44 40 Steerer OD: 28. 6mm Cup: 44mm 44mm Race: 40mm Bearing Angle: 45 45 Color: Black