FSA

FSA IS-2 upper threadless integrated headset kit
Fits 1 1/8" integrated upper head tubes
Includes bearing, cap & conical wedge
Uses 1 1/8" ACB3645 bearings (41 mm OD)

FSA Part Code:  121-0520 Learn More

Fits 1.125" steerer.  Adapts to 1.5" headset.
Fits 3645 bearings with 36° inner chamfer

FSA Part Code: 160-5540 Learn More

Fits 1.125" steerer.  Adapts to 1.5" headset.
Fits 3645 bearings with 36° inner chamfer

FSA Part Code: 160-5538 Learn More

This headset cup can adapt Scott Roxter, Trek Roscoe, Avanti Montari and other bikes to take a tapered steerer fork like the Manitou JUnit.

1.5" headset lower cup assembly to adapt a 44 mm head-tube to a 1.5" taper steerer (premium version with stainless steel bearings)
Includes aluminium lower cup with 12 mm spigot, ACB3645 1.5" stainless steel cartridge bearing and 36 degree crown race
Black version with chromium steel bearings also available here

FSA Part Code:  101-0019000010 Learn More

This headset cup can adapt Scott Roxter, Trek Roscoe, Avanti Montari and other bikes to take a tapered steerer fork like the Manitou JUnit.

1.5" headset lower cup assembly to adapt a 44 mm head-tube to a 1.5" taper steerer
Includes aluminium lower cup with 12 mm spigot, ACB3645 1.5" cartridge bearing and 36 degree crown race
Premium version with stainless steel bearings also available here

FSA Part Code:  101-1331 Learn More

Fits 1.5" steerer.  Adapts to 1.8" headset bearing
Ideal solution for riders upgrading suspension forks on their e-bikes using 1.8" headsets
Alloy split ring crown reducer
Fits 3645 bearings with 36° inner chamfer

FSA Part Code: 160-0119000010 Learn More

FSA Orbit Z complete headset for 44/56mm tapered head-tubes.
Includes cups, bearings, races, star nut and top-cap.
Uses 36/45° bearings.

FSA Part Code:  121-0501 Learn More