The Excess Pro Alloy Front Axle Conversion Sleeve adapts Excess XLC Pro 10mm (3/8") front hubs to a 20mm axle. Axle sold separately. Note: Compatible with Excess XLC Pro 10mm (3/8") front hubs. Axle sold separately. Features: Aluminum Construction Replaces the standard 10mm (3/8) front axle on XLC Pro Hubs, converting it to 20mm thru axle body Does not include the 20mm thru axle, this is just the conversion for the front hub body