• SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel

SR308 Road Straight Pull Disc Brake Hub for Gravel

No.SR308
Road Straight Pull Disc Brake Hub for Gravel
Type:
Disc Brake
Spoke System:
Straight Pull
Spoke Holes:
28H/28H
Freehub System:
Ratchet System
Brake Interface:
Center Lock
Matching Spoke:
Steel Spoke
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • SR308 Road Straight Pull Disc Brake Hub for Gravel
  • Description

  • Specification

  • Structure

SR308 Precision Bike Hubs

Revolutionary design for top - notch cycling performance

Designed for cyclists who pursue excellence, the SR308 hub system represents the forefront of precision manufacturing and material science in cycling components.

SR308 Front Hub Precision Engineering

Front Hub Engineering

The SR308 Front Hub combines aerospace - grade materials with precision manufacturing to offer outstanding performance and reliability.

High - Quality Material

The combination of AL 6061 for the hub body and AL 7075 for the freehub and axle provides a perfect balance of strength and lightness.

Precision Rotation

Two 6803 bearings ensure smooth rotation with minimal friction, guaranteeing efficient power transfer and long - lasting performance.

Optimal Spoke Configuration

With 28H spoke holes and 14G spoke gauge, it integrates well with various modern performance frames and wheel builds.

Standard Spacing

The 100MM OLD spacing and Φ12MM THRU end - caps make it a great fit for most front wheel setups.

Balanced P.C.D.

The P.C.D. of Φ40.0mm - Φ42.0mm offers excellent bracing angles for improved wheel stiffness.

"The use of AL 6061 and AL 7075 in the SR308 front hub is a game - changer, providing a durable yet lightweight solution for cyclists."

SR308 Rear Hub Advanced Technology

Rear Hub Performance

The SR308 Rear Hub features an advanced PG Ratchet system and optimized bearing configuration for instant power delivery.

Advanced Engagement System

The proprietary PG Ratchet mechanism provides near - instantaneous engagement for responsive acceleration and precise control.

Optimized Spacing

142MM OLD spacing enhances stiffness and tire clearance, while maintaining an efficient design.

Enhanced Durability

The combination of 2×15267/6802 bearings is carefully selected to handle the high torque and load requirements of rear wheel applications.

Optimal Spoke Configuration

28H spoke holes and 14G spoke gauge ensure a strong and reliable wheel build.

Standard End - Caps

The Φ12MM Thru end - caps are compatible with a wide range of rear wheel setups.

Balanced P.C.D.

The P.C.D. of Φ42.0mm - Φ42.0mm provides excellent bracing angles for improved wheel stiffness and power transfer.

"The SR308 rear hub with its advanced PG Ratchet system and precise P.C.D. dimensions offers cyclists an unparalleled riding experience."

Material Science Excellence

Precision-engineered alloys for maximum performance and durability

AL 6061 Structural Alloy

Used for the hub body, AL6061 provides the perfect balance of strength, weight, and vibration damping characteristics essential for high-performance cycling applications.

AL 7075 Aerospace Alloy

Reserved for critical stress components like the freehub and axle, AL7075 offers exceptional strength-to-weight ratio and fatigue resistance under high-load conditions.

Unleash Your Cycling Potential

The SR308 Precision Bike Hubs are more than components—they unlock new cycling performance for pros and weekend riders.

Contact Technical Support
Specification SR308 Front SR308 Rear
Material AL 6061(Body)+ AL 7075(Freehub & Axle) AL 6061(Body)+ AL 7075(Freehub & Axle)
Spoke Holes 28H 28H
Bearing 2×6803 2×15267/6802
Spoke Gauge 14G 14G
OLD 100MM 142MM
End Caps Φ12MM THRU Φ12MM Thru
Weight 301g±5g/set
P.C.D. Φ40.0mm-Φ42.0mm Φ42.0mm-Φ42.0mm
Freebody System - PG Ratchet

SR308 Bicycle Hub Structure

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