• CM300 MTB Boost Hub for Carbon Spokes-1
  • CM300 MTB Boost Hub for Carbon Spokes-2
  • CM300 MTB Boost Hub for Carbon Spokes-3
  • CM300 MTB Boost Hub for Carbon Spokes-4
  • CM300 MTB Boost Hub for Carbon Spokes-5
  • CM300 MTB Boost Hub for Carbon Spokes-6
  • CM300 MTB Boost Hub for Carbon Spokes-1
  • CM300 MTB Boost Hub for Carbon Spokes-2
  • CM300 MTB Boost Hub for Carbon Spokes-3
  • CM300 MTB Boost Hub for Carbon Spokes-4
  • CM300 MTB Boost Hub for Carbon Spokes-5
  • CM300 MTB Boost Hub for Carbon Spokes-6

CM300 MTB Boost Hub for Carbon Spokes

No.CM300
MTB Boost Hub for Carbon Spokes
$0.00
Spoke Holes:
24H/24H
Bearing:
2x6803(F)
4x15267(R)
Spec:
15x110
12x148
Weight:
330g/set
Freehub:
Shimano HG
MS
XD
Driving System:
PG Ratchet
  • CM300 MTB Boost Hub for Carbon Spokes-1
  • CM300 MTB Boost Hub for Carbon Spokes-2
  • CM300 MTB Boost Hub for Carbon Spokes-3
  • CM300 MTB Boost Hub for Carbon Spokes-4
  • CM300 MTB Boost Hub for Carbon Spokes-5
  • CM300 MTB Boost Hub for Carbon Spokes-6
  • Description

  • Specification

  • Structure

CM300 High-Performance bicycle Hub System

Engineered with dual-alloy precision for riders demanding uncompromising quality

The CM300 Road Bike Hub redefines reliability through strategic material pairing and optimized geometry, delivering consistent performance across all riding terrains.

CM300 Front Hub - Precision Engineering

Front Hub Engineering

The CM300 Front Hub achieves exceptional balance between lightweight construction and structural integrity

Strategic Alloy Construction

Combining AL6061 body with AL7075 components creates a robust structure at just 107.2g – 15% lighter than conventional hubs while maintaining critical strength parameters.

Optimized Bearing Configuration

Dual 6803 bearings reduce rotational resistance by 22% compared to standard setups, with enhanced seal design preventing contamination in harsh conditions.

Precision Spoke Interface

24H spoke pattern with 14G compatibility creates uniform tension distribution. 110mm OLD spacing with 15mm thru-axle ensures frame compatibility and steering precision.

"The consistent Φ42.5mm P.C.D. creates symmetrical spoke angles that minimize stress concentration, extending wheel lifespan by an estimated 30% under rigorous use."

CM300 Rear Hub - High Performance

Rear Hub Technology

The CM300 Rear Hub integrates advanced power transmission with durable construction for demanding riding

PG Ratchet Drive System

Proprietary PG ratchet mechanism delivers 18° engagement for instantaneous power transfer, with 40% more contact points than traditional freehub designs.

Reinforced Load Handling

Quadruple 15267 bearings distribute torque evenly across 148mm OLD spacing, supporting rider weights up to 120kg with minimal deflection during aggressive cornering.

Balanced Performance Metrics

At 239.2g, the rear hub achieves a 1:2.2 front-to-rear weight ratio that optimizes bike balance, with Φ12mm thru-axle enhancing lateral stiffness by 18%.

"The Φ42.5mm-Φ44.5mm P.C.D. progression creates progressive spoke tension that balances power transfer efficiency with shock absorption over rough terrain."

Strategic Alloy Technology

Material science working in perfect harmony for optimal performance

AL6061 Structural Matrix

Heat-treated to T6 condition, the AL6061 body provides 95% of the strength of steel at 35% of the weight, with exceptional machinability enabling precision tolerances of ±0.02mm.

AL7075 Critical Components

Used in high-stress areas like freehubs and axles, this aerospace-grade alloy offers 30% higher tensile strength than standard aluminum, with superior fatigue resistance under cyclic loading.

Engineered for Total Confidence

The CM300 Hub System represents the culmination of material science and precision engineering, delivering consistent performance whether tackling technical trails or pushing speed records on flat terrain.

Contact Technical Support
Specification CM300 Front CM300 Rear
Material AL 6061(Body)+ AL 7075(Freehub & Axle) AL 6061(Body)+ AL 7075(Freehub & Axle)
Spoke Holes 24H 24H
Bearing 2×6803 15267*4
Spoke Gauge 14G 14G
OLD 110mm 148mm
End Caps 15MM THRU Φ12MM Thru
Weight 330 ± 5 g/set
P.C.D. Φ42.5mm-Φ42.5mm Φ42.5mm-Φ44.5mm
Freebody System - PG Ratchet

 

CM300 Bicycyle Hub Structure

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