Tune ClimbHill/KillHill Hubset – 6‑Bolt Disc – Boost Spacing – 28h Front & Rear – Micro Spline Freehub – New in Box
 
🚴 Welcome to Traveling Ground
 
We’re a mission-driven bike shop—every part you buy helps refurbish and donate bikes to Bicycles for Humanity Colorado. Every wheel built moves someone forward.
 
🔧 Why This Hubset Shines
 
Hand-built in Germany from aerospace-grade CNC-machined 7075 aluminum, this top-tier hubset combines precision engineering with race-ready performance. Both front and rear hubs feature Boost spacing (15×110 mm front, 12×148 mm rear) and reliable sealed cartridge bearings. The rear hub employs a Shimano Micro Spline freehub, ensuring compatibility with current 12-speed MTB drivetrains and HG/road 9–11 speed cassettes. A robust, low-weight design (around 356 g with 32h) comes from straight-pull flange profiles and 6-bolt disc rotor mounts.
 
✅ Specs:
Condition: Brand new, unopened box
Spoke Count: 28 holes front & rear
Axle Spacing: 15×110 mm front Boost • 12×148 mm rear Boost
Disc Mount: 6‑Bolt IS
Freehub Body: Shimano Micro Spline (12-speed MTB; also accepts HG 9–11) 
Bearings: Standard sealed cartridge (2 front / 4 rear)
Material: CNC-machined 7075 aluminum hubs; titanium pawl ring
Weight: Approx. 121 g front, 233 g rear, ~356 g set 
Manufactured: Buggingen, Germany
 
📦 Included:
ClimbHill front hub (Boost 15×110 mm, 28h, 6‑Bolt)
KillHill rear hub (Boost 12×148 mm, 28h, 6‑Bolt, Micro Spline)
Factory end caps and spacers
Original packaging