The Tracer BMX tire features medium-sized squared off knobs for traction in hardpack and loose off-road conditions. 20 x 2.125 inch (57-406 ISO). Wire bead. 60 PSI max. Black.
A guide to common bike tire sizes and how to find the tires that will fit your bike.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tips for proper bicycle tire mounting and tire safety.
A guide to understanding tire width.
A guide to understanding bicycle tire tread patterns and what you should look for.