Ritchey WCS Carbon Headset Spacer KitComing in a pack of 6, the WCS Carbon Headset Spacer Set includes three 5mm and three 10mm spacers. These spacers will help you to re-position your stem and to obtain the perfect handlebar height. By enabling you to make these fine riding position adjustments to your road bike, you’ll enjoy enhanced control, power delivery and comfort. Compatible with forks with the commonly-used 1.1/8” sized steerer tube, Ritchey has also made them from lightweight carbon fibre.Features: Material: Unidirectional (UD) Carbon Fibre Steerer Tube Compatibility: 1 1/8" Included: 3x5mm and 3x10mm spacers Black on black Ritchey logoBuy Ritchey Components from Chain Reaction Cycles, the World's Largest Online Bike Store.