Sunlite R449 Cartridge Headset Bearings 36/45 for Bike Suspension 2D1/2D2/2D3/2D4/2D5/2D6/2D7/2D8/2D9/2D10/JMN/JMN2/JMN3//JNY/JNY2//JTX/JTX2/JTX3//JCA//JCO/JCO2/JCO3//JFL/JFL2/JFL3//JNC/JNC2/JNC3/ combining natural merino wool and

combining natural merino wool and synthetic fibers for enhanced insulation and durability in cold weather conditions

- Reinforced Nylon Composite Body: Built with high-strength

T-shaped air passageway that prevents the insert from obstructing airflow

Engineered with Shimano's Asymmetric 110 BCD and Hollowtech II spindle technology for precise gear shifting and optimized power transfer across 9 and 10-speed drivetrains

Sunlite R449 Cartridge Headset Bearings 36/45 for Bike Suspension 2D1/2D2/2D3/2D4/2D5/2D6/2D7/2D8/2D9/2D10/JMN/JMN2/JMN3//JNY/JNY2//JTX/JTX2/JTX3//JCA//JCO/JCO2/JCO3//JFL/JFL2/JFL3//JNC/JNC2/JNC3/ combining natural merino wool andUpgrade your bicycle's steering precision with the Sunlite Headset Cartridge Bearing R449 36 45, a high performance replacement designed for durability and smooth operation. Crafted with premium materials and engineered for compatibility across various headset models, these cartridge bearings ensure optimal performance on the trail, road, or commuting routes. Constructed from high quality steel and precision machined for consistent performance, the