Description

Upgrade Your Ride with Precision Engineering

For cyclists seeking unwavering performance under pressure, our 40-Series replacement cartridge bearings deliver unmatched durability and precision designed for high-stress applications. Crafted with advanced black oxide construction, these bearings resist wear and corrosion while maintaining smooth operation—perfect for mountain bike maintenance or road cycling upgrades where reliability is non-negotiable.

Why Choose Our 40-Series?
Universal Fit: Compatible with 110-, 40-, and 10-Series headsets for seamless integration across multiple bike models
Precision Geometry: 38mm outer diameter (O.D.) and 27.25mm inner diameter (I.D.) ensure precise alignment and reduced play
Optimized Design: Cartridge-style construction with a 36×45 angular contact angle enhances stability during aggressive maneuvers
Lightweight Strength: Compact 6.5mm thickness minimizes rotational inertia while maximizing load capacity

Outperform Competitors
| Feature | Our Bearing | Competitor Options |
|———————–|—————————|—————————–|
| Durability | Black oxide corrosion resistance | Standard chrome steel |
| Weight | Industry-leading lightweight design | Heavier stamped steel |
| Compatibility | Fits 3+ headset standards | Limited to single standard |
| Maintenance | Low-friction seals reduce cleaning frequency | Frequent servicing required |

Whether you’re conquering technical trails or logging road miles on your commuter bike, these bearings deliver professional-grade performance at an accessible price point. Designed by engineers who understand real-world riding demands, they’re your go-to solution for upgrading legacy equipment or building custom rigs from scratch.

Stay ahead of wear and tear—upgrade today and feel the difference in every pedal stroke.

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