Funn Desend Upper Headset Bearings Stock Item:Funn Desend Upper Bearing ZS 44/28.6, AL6061 Cup With Cartridge Angular Contact Bearing, Semi-Integrated Magnetic Attachment: Fidlock® magnetic fittings

Magnetic Attachment: Fidlock® magnetic fittings make securing or removing your load quick and hassle free

To top off this build we use our T7 compound to maximize grip and damping

Easy to attach with Basil's Hook-On system

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

Funn Desend Upper Headset Bearings Stock Item:Funn Desend Upper Bearing ZS 44/28.6, AL6061 Cup With Cartridge Angular Contact Bearing, Semi-Integrated Magnetic Attachment: Fidlock® magnetic fittingsA 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