Premium CS03 Ratchet Hubs 21H/21H for Disc Brake Road Bikes

Sakya Carbon Premium CS03 Ratchet Hubs for Disc Brake Road Bikes

♦Why Choose CS03 Hubs?

Designed for competitive road cyclists and enthusiasts alike, the CS03 series combines featherlight weight with the legendary reliability of ratchet drive technology. Whether you’re sprinting for the finish or grinding up mountain passes, these hubs ensure every watt of your effort is translated directly into forward momentum. The sealed bearing system keeps out moisture and debris, extending service life and maintaining smooth rolling performance for thousands of kilometers.

Key features

• Premium Ratchet Drive System: Delivers instant, smooth engagement with a 36T ratchet (upgradeable to 54T for faster pick-up), ensuring efficient power transfer on every pedal stroke.
• High-Precision Bearings:Front & rear hub shell bearings: 15267*2 (sealed for durability and low rolling resistance)|Freehub body bearings: 6902*2 (enhanced stability for high-torque loads)

• Center Lock Disc Brake Interface: Compatible with modern road disc brake setups, offering secure rotor mounting and consistent braking performance.
• Disc Brake Ready: Optimized for center lock rotor installation, ideal for all-weather road riding.
• Ultra-Lightweight Design:Front hub (12x100mm): Only 121.7g|Rear hub (12x142mm): Only 245.8g

                                                Minimizes rotational weight for quicker acceleration and improved climbing efficiency.

• HG 11-Speed Freehub Body: Fully compatible with Shimano 11-speed road cassettes, ensuring wide drivetrain compatibility.
• Robust & Durable Construction: CNC-machined alloy shell and axle provide exceptional strength-to-weight ratio, built to withstand long-distance road riding.