Cane Creek ZN40 Series Bearing Kit 36 x 45 41/52mm Model-FCM300 +6% in rolling efficiency vs

+6% in rolling efficiency vs Michelin Lithion 3

426 RED +4

Chain: SRAM XO Eagle Transmission

3-layer softshell with VentAir wind® membrane (WP 8

Cane Creek ZN40 Series Bearing Kit 36 x 45 41/52mm Model-FCM300 +6% in rolling efficiency vsCane Creek ZN40 Series Bearing Kit 36 x 45 41 52mm. ZN40 Series bearings are corrosion resistant zinc coated machined steel cartridge bearings with hardened steel balls which vastly increases the longevity of your headset. Compatible with 110 40 and 10 Series headsets TECH SPECS Cartridge Bearing Angle 36x45 Bearing I. D. (mm) 41 Bearing Type Cartridge Bearing O. D. (mm) 52 Thickness 6. 5