First Fatbike Square Taper bottom bracket 160.8 × 100 mm BSA. Designed for wide fatbike frames, ensuring stable installation and reliable power transfer.

First F-2001E Square Taper bottom bracket for 73 mm shells. Steel cups, two sealed bearings and an aluminum sleeve ensure durable and reliable everyday performance.

First A-Head B1 threadless headset for 1-1/8" forks with semi-sealed cartridge bearings, durable steel construction and EC34 standard compatibility.

First A-Head Z threadless headset for 1-1/8" forks. Complete 10-piece set with bearings and crown race, made from durable black steel.