Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Blue Trek 1 RC2 W/ButterCups e-Bike approved

1 RC2 W/ButterCups e-Bike approved Yes Steerer Tube 1-1/8-1

Find your way in the most challenging environments with multi-band GNSS technology that provides enhanced positioning accuracy

Spring and mounting hardware sold separately

Charger Race Day 2 Damper—every detail perfected every extra ounce shaved away is RockShoxs lightest performance-driven damper and features 2 Compression positions: Open or a rock-solid Lock

Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Blue Trek 1 RC2 W/ButterCups e-Bike approvedTECH SPECS Bearing Grade Stainless Steel Material Aluminum Primary Color Blue Upper Cup 41mm SHIS Upper IS41 28. 6 Crown Race Diameter 40mm Headset Position Complete Headset Type Integrated S. H. I. S. IS41 28. 6 IS52 40 SHIS Lower IS52 40 Steerer Tube 1 1 8 1. 5 Lower Cup 52mm