Ritchey WCS Headset Cartridge Bearing 41.0 30.15 7mm 45/45 deg 1pc Model=Acera RD-M3020 Rear Derailleur Shift lever features 2-way release

Shift lever features 2-way release Color Black Rear Der/Shifter Compatibility Shimano Mountain Drivetrain Speeds 12 Weight 117 Shifter Style Trigger Shifter Type I-Spec EV

5 Valve Presta Freehub Body Shimano HG 11 Hub Spacing 142mm Rim Construction Carbon Wheel-Brake Comp

The low camber is ideal for thin applications of hard grip waxes and excels when racing in cold

9 (1-3/8") Front Derailleur Cable Pull Bottom Pull Front Der/Shifter Compatibility Shimano Road Max Ring (teeth) 50 Front Derailleur Style Traditional Mounting Type 34

Brake and shift lever have independent adjustable reach

Ritchey WCS Headset Cartridge Bearing 41.0 30.15 7mm 45/45 deg 1pc Model=Acera RD-M3020 Rear Derailleur Shift lever features 2-way releaseReplacement headset bearings for Ritchey headsets. 45 45 degree angular contact sealed bearing Titanium coated for corrosion resistance Cartridge Bearing Angle 45x45 Bearing I. D. (mm) 30. 15 Bearing Type Cartridge Bearing O. D. (mm) 41 Thickness 7 Size 41. 0 30. 15Mm