Industry Nine iRiX IS42/IS52 Headset : IS42/28.6 | IS52/40 Integrated Complete Gold Guards & Bashrings The reducers are engaged with

The reducers are engaged with a lever and have one disengaged position and 4 levels of resistance (3 levels for 125) to provide options for adjusting training resistance or braking down hills

despite image showing skis with bindings

size 650b front/rear rear (XDR) rim EA70 AX hub X5 axle/spacing (mm) 10x135 QR+12x142 TA hole 28h spoke DB nipple alloy color black weight 1670g (f/r set)

Tacky texture keeps your hands from slipping

Industry Nine iRiX IS42/IS52 Headset : IS42/28.6 | IS52/40 Integrated Complete Gold Guards & Bashrings The reducers are engaged withTECH SPECS Lower Cup 52mm Primary Color Gold Headset Position Complete Material Aluminum SHIS Lower IS52 40 Steerer Tube 1 1 8 1. 5 SHIS Upper IS42 28. 6 Crown Race Diameter 40mm Bearing Grade Stainless Steel S. H. I. S. IS42 28. 6 IS52 40 Headset Type Integrated Upper Cup 42mm