The Cinema VR Rear hub guard is injection molded from an ultra-durable and fast sliding nylon composite. Designed to work with as many different 14mm rear hub and frame combinations as possible, the VR guard can work on either the drive side or non-drive side and protects the hub flange and spokes from grind damage. But unlike most guards, the VR installs on the outside of the dropout, so there's no hub hardware to replace and it doesn't have any effect on axle spacing. 14mm (1.2 oz)