S10 Jbend Boost 12*148mm

Regular price $139.00
Regular price Sale price $139.00
Shipping calculated at checkout.
颜色 BLACK
颜色
Number of holes
Number of holes
Cassette interface
Cassette interface

Koova Boost S10 Rear Hub - Modern Boost Standard Performance

Built for modern boost-spacing mountain bikes, the S10 12×148mm rear hub delivers professional-grade performance with our advanced 75-tooth ratchet system. The boost spacing provides increased stiffness and improved tire clearance, making it perfect for aggressive trail and enduro riding.

Key Features:

  • Boost spacing (12×148mm) for modern MTB frames
  • 75T high-engagement ratchet system (4.8° engagement)
  • J-bend spoke design for easy wheel building
  • 32-hole configuration for optimal strength
  • Universal cassette compatibility: HG, XD, and MS
  • Durable 6-bolt disc brake interface
  • Precision CNC-machined components

Technical Specifications:

  • Application: Mountain Bike (Boost Standard)
  • Axle: 12×148mm Thru-Axle
  • Brake Interface: 6-Bolt Disc
  • Spoke Holes: 32H J-bend
  • Weight: 346g (±5g)
  • Cassette Interface: HG / XD / MS compatible

Boost Spacing Advantages:

  • Increased stiffness: Better power transfer and handling
  • Wider spoke bracing: Stronger, more durable wheels
  • Better tire clearance: Room for wider tires
  • Modern standard: Compatible with current MTB frames

Ideal For:

  • Trail riding
  • Enduro racing
  • All-mountain adventures
  • Aggressive riding styles
  • Modern boost-spacing frames

The Boost S10 hub is engineered for riders who demand the best in modern mountain bike technology. Pair with a Boost S10 front hub for a complete, high-performance wheelset.

Free worldwide shipping on orders over $199. Upgrade to boost spacing with Koova precision.

  • Hub shell Material: CNC-machined 7075-T6 aluminum
  • Axle Material : CNC-machined 7075-T6 aluminum
  • Bearings: 4PCS(6902*2+17287*2)
  • Drive System: 75T ratchet system, 75 POE engagement
  • Finish: Anodized


Protection: Full weather-sealed design, waterproof & dustproof

  • Free shipping on orders $199+.
  • We ship worldwide — rates show up at checkout.
  • Orders usually go out in 2–3 business days.
  • Taxes and duties depend on your country’s rules.
  • 30-day easy returns if unused and in original packaging.
  • Just email us at [support@koovacomponents.com] to start a return.
  • Refunds are sent once we get your item back.
Have questions? Contact us
75T-ratchet structure

Koova 75T High-Strength Ratchet

Upgrade your drivetrain with the Koova 75T High-Strength Ratchet!
Featuring a 75-tooth high-precision engagement design, it delivers ultra-fast 4.8° engagement for rapid power transfer and immediate pedal response. Whether you're charging through technical trails or sprinting to the finish, this ratchet ensures consistent, explosive performance.

S10 rear hub Processing

Precision That Performs|CNC-Crafted

Every Koova hub begins with aerospace-grade aluminum, meticulously CNC-machined through multiple stages to achieve unmatched precision. We demand tight tolerances to ensure ultra-smooth rotation, stable engagement, and long-lasting performance.

koova bearing

Ultra-Smooth, Built to Last|P5-Grade Precision Bearings

Inside every Koova hub, we use P5-grade high-precision bearings, engineered to perform under high-speed and demanding conditions. These bearings offer exceptional concentricity and rolling efficiency, ensuring low-friction rotation and long-lasting durability even during extended rides.