Wolf Tooth Performance Headset - EC49/40 Lower Black CheckoutTitle=Shimano GRX FC-RX600-1 Crankset - 172.5mm Push-button bleeders are not included

Push-button bleeders are not included but can be purchased separately

The TR37 / Onyx Vesper wheels are perfectly suited for riders that navigate towards trail riding

All Di2 components on the bicycle require the same firmware version

Ceramic ball bearings

Wolf Tooth Performance Headset - EC49/40 Lower Black CheckoutTitle=Shimano GRX FC-RX600-1 Crankset - 172.5mm Push-button bleeders are not includedWolf Tooth Performance Headset EC49 40 Lower Black. Wolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings balancing quality and price. Black Oxide Bearings are made from chromium steel for high load capacity and durability Black oxide coating reduces corrosion TECH SPECS Crown Race 40 Bearing Type Cartridge Bearing Type Black Oxide Steel Color Black S. H. I. S Lower EC49