Cane Creek 110-Series HeadsetThis premium headset is perfect for both road and MTB use as it offers a smooth and reliable steering solution wherever your journey leads you. It features a strong aluminium cup and cover construction which makes it ideal at tackling all the challenges which come with a long day behind the bars. Cane Creek has also gone the extra distance with this version by equipping it with a stainless steel crown race for unrivalled robustness and stability with every turn.Features: Cup Material: 7075 T6 Aluminium Cover Material: 7075 T6 Aluminium Crown Race Material: Stainless Steel Use: Road, MTB Steerer Diameter: 1 1/8-1.5" tapered Stack Height: External Cup (EC): 16mm top and 12mm bottom; ZeroStack (ZS): 8mm or 15mm top and 4mm bottom; Integrated (IS): 9mm or 15mm top and 1mm bottom Bearings: EC34 will take a 41mm bearing ZS44 will take a 41mm bearing ZS49 will take a 41mm bearing EC44/40 will take a 52mm bearing EC44/33 will take a 47mm bearing EC49 will take a 52mm bearing IS41 will take a 41mm bearing IS42 will take a 42mm bearing IS52 will take a 52mm bearing Buy Cane Creek Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.