e*thirteen Sidekick Pro Front MTB Hub – Boost 110, 28H

The Sidekick Pro Front Hub is built to match the performance and refined aesthetics of the Sidekick Pro rear hub. Featuring premium TPX bearings, a lightweight CNC‑machined shell, and a dual black/ sterling silver anodized finish, it delivers smooth rolling efficiency and long‑term reliability for trail, enduro, DH, and e‑MTB builds.

Performance Features

• TPX premium bearings for lower friction and extended service life


• Lightweight 154 g CNC‑machined alloy hub shell


• Dual black & sterling silver anodized finish to match the Sidekick Pro rear hub


• Boost 110×15mm and 110×15/20mm axle spacing options


• 6‑Bolt disc mount for universal rotor compatibility


• J‑bend spoke interface for easy wheel builds and serviceability


• E‑MTB compatible for high‑torque applications


• 10‑year warranty with lifetime bearing coverage

Technical Specifications

• Axle: Boost 110×15mm or 110×15/20mm


• Hole Count: 28H


• Disc Mount: 6‑Bolt


• Spoke Type: J‑bend


• Weight: approx. 154 g


• Finish: Dual black / sterling silver anodize


• Use: Trail, Enduro, DH, E‑MTB

What’s in the Box

• Sidekick Pro Front Hub

SKU: HB4UKA-201

The Sidekick Pro Front Hub is the ideal match for the Sidekick Pro rear, offering premium performance, smooth rolling, and a clean, modern aesthetic for high‑end wheel builds.