Funn Desend Upper Headset Bearings Stock Item:Funn Desend Upper Bearing ZS 44/28.6, AL6061 Cup With Cartridge Angular Contact Bearing, Semi-Integrated Easy to attach with Basil's

Easy to attach with Basil's Hook-On system

Deore M535

the ULTEGRA Di2 platform also has the improved system design across its electronics

ShiftMounts are adapter mounts that allow you to integrate SRAM and Shimano shifters with several different brakes from Shimano

Funn Desend Upper Headset Bearings Stock Item:Funn Desend Upper Bearing ZS 44/28.6, AL6061 Cup With Cartridge Angular Contact Bearing, Semi-Integrated Easy to attach with Basil'sA precision engineered headset cup. Machined from aerospace grade AL6061 and teamed up with angular contact bearings. The Descend headset guarantees super smooth control so you can focus on the trail. Our top and bottom headset pieces are available separately. Technical: Upper Cup ZS44 28. 6 ZS49 28. 6 ZS56 28. 6 Steerer Tube 28. 6mm 28. 6mm 28. 6mm Headtube Size 44mm 49mm 56mm Stack Height 9. 6mm 10. 3mm 13. 5mm Replacement Bearing R408 R412 R413