Wolf Tooth GeoShift Performance Angle Headset - 1 Deg Long ZS44/ZS56 Black MFPN=TB91146200 The only pedal system that

The only pedal system that allows independent fore-aft

increased durability

Removable mounting hardware for FSA WE or Di2 battery

AND MORE CARGO: The extended back end - or Long Tail

Wolf Tooth GeoShift Performance Angle Headset - 1 Deg Long ZS44/ZS56 Black MFPN=TB91146200 The only pedal system thatThe GeoShift Performance Angle Headset allows you to adjust the geometry of your bike by changing the head tube angle available in 1 or 2 degree options. This unique design lets the bearings sit at an angle to align with the steerer tube preventing creaking noises commonly found with angle headsets that feature a spherical design. Reduce the head tube angle to make for slacker geometry and added stability on fast descents or increase the angle using