This is a high-quality Miche RG2 front hub designed for road bike racing enthusiasts. The hub features 32 spoke holes and a quick-release attachment style for easy installation. Made from durable aluminum material, this hub is built to last and will provide you with a smooth riding experience. The axle diameter is 9 mm and it comes as a single item. Compatible with road bikes, this hub is a must-have for anyone looking to upgrade their bike's performance.