No rim at the bottom of the lens

length: 285

lightweight and even has a port for a water bladder

they are not cross compatible

Maxxis Crossmark II Tyre - 26 Inch - 2.1 Inch - No - Single Compound - Single Ply - Hard - Light Duty Protection - Wire - Black PLP|EMTB Optimised No rim at the bottomCrossmark II The Maxxis Crossmark II is a one of the faster rolling cross country (XC) mountain bike tyre designed for speed on hardpack and intermediate terrain. It's an evolution of the original Crossmark, with improved cornering and braking performance while maintaining its hallmark low rolling resistance. The Maxxis Crossmark II is a top choice for riders who want XC speed with improved cornering and braking over the original. Ideal for racing and