RITCHEY WCS Bearing 1-1/4 ZS49 (1 unit) Bicycle Head Component ●GD ●1-1/4” ●ZS49: 46×34.1/45×45 ■Please note that the design, specifications, and appearance of the product may change without notice. Cycle parts, bicycle head component, headset, road bike, MTB, mountain bike, cyclocross, cross bike.