* To suit tapered forks* If you are running a 1 1/8″ fork you will need to purchase the Works Components reducer crown. – this headset comes as standard with a crown race to suit tapered forks* Upper cup Stack height: 11mm – Total upper stack height including bearing cover: 16mm* Lower cup Stack height: 14mm* Upper Bearing: 41mm OD, 45 x 45 Degree AC sealed bearing* Lower Bearing: 52mm OD, 45 x 45 Degree AC sealed bearing* Upper cup insertion depth: 9mm* Lower cup insertion depth: 10.5mm* Split type 7075-T6 aluminium crown race for simple, tool free installation* Headset comes complete with top-cap (star-nut included), bearings and crown race – all parts required for fitment