Product Description Replacement deep groove ball bearing for Fulcrum Road wheelsets. The bearing is suitable for your hub body (not for freehub bodies). Specifications:Dimensions (Inner x Outer x Width):17 x 30 x 7 mmDesignation:6903Models:Design:deep groove ball bearingsRecommended Use:hub bodiesBall Material:steelInstalled on the Following Wheels:Racing Quattro 2013-2015 (front/rear)Racing Quattro CX 2013-2015 (front/rear)Racing Quattro LG as of 2016 (front/rear)Racing Quattro Carbon as of 2016 (front/rear)Racing Quattro LG CX as of 2016 (front/rear)Racing 7 2014/2015 (rear only)Racing 7 CX 2014/2015 (rear only)Racing 7 LG as of 2015 (rear only)Racing 7 LG CX as of 2015 (rear only)Racing 5 2014/2015 (front/rear)Racing 5 CX 2014/2015 (front/rear)Racing 5 LG 2015 (front/rear)Racing 5 LG CX 2015 (front/rear)Racing S19 as of 2016 (rear only)Racing S19 Light as of 2016 (front/rear)Note:All the front wheels of the aforementioned models that are not listed require the Fulcrum R5-004 bearing kit. Manufacturer Number:R4-004 (identical to Campagnolo HB-SC113) Contents:4 x Fulcrum bearings Manufacturer: Fulcrum Wheels S.r.l. Via dell' Economia 103 36100 Vicenza Italy info@fulcrumwheels.com