Light weight version designed for cross-country racing, light trail riding, and/or less aggressive riders. SPECIFICATIONS Tire Widths: 1.8" - 2.4" Inner Rim Width: 22mm-32mm WHEEL WEIGHT 27.5" | 140g 29" | 150g TOTAL CONFIDENCE 01 CushCore transforms your tubeless tire into a suspension system with a tune-able air spring and foam damper. 02 A proprietary closed-cell, polyolefin foam controls compression and rebound forces. Its lightweight, ultra durable and impervious to sealant. 03 CushCore's patented profile applies constant pressure on the tire sidewalls. This provides protection and stability even at low tire pressures. 04 CushCore is designed to fit tight on the rim. This radial tension locks the bead to the rim while maintaining a supple tread patch. For installation instructions click here.