Black Forest, Germany-based Tune just announced a new hub chassis, the Micro…

Tune’s new Micro hubs are designed with the brand’s Functional Lightweight Design philosophy: lightweight where it matters, reinforced where it counts. Featuring exceptional weather sealing, high-engagement freehubs, and premium bearings — delivering durability and speed for modern trails and gravel riding.

Tune Micro Hubs Quick Hits

• J-bend hubset built for aggressive trail and gravel riding
• Reinforced hub shells for stiffness and strength
• New freehub system with rapid points of engagement
• Heat-treated steel pawls for long-term reliability under load
• Hard-anodized axles with pre-adjusted axial play — no more shims, easier servicing
• E-MTB ready with optimized sealing against dirt and weather (only on Micro Boost)
• All hubs are machined, assembled, and tested by hand in Germany, and backed by a 10-year warranty (excluding wear parts).

Micro Boost Specs

• Spacing: 110 / 148 mm
• Spoke Count: 28 / 32 (front or rear)
• Flange: J-Bend
• Disc: 6-Bolt
• Bearings: Enduro Bearings ABEC-5 or XD-15
• End Caps: Aluminium, 15 mm / 12 mm
• Freewheels: Hyperglide, MicroSpline, XD/XDR, N3W
• Weight for set: 367 g (+/- 3%)
• Colors: Black, Red, Silver
• POE: 138, 6 pawls
• Materials:
  • Hub shell: High-performance aluminium
  • Pawls & tooth ring: Hardened tool steel
  • Axle: Hard-anodised aluminium
• Warranty: 10 years (excluding wear parts); XD-15 bearings lifetime

Of course, Tune has not forgotten road and gravel enthusiasts. That’s why the Micro hubs are also offered in dedicated road and gravel configurations – delivering the same precision, performance, and durability made in the Black Forest.

See more at Tune.