TRYGG SCAN-TRAC is the lightest chain. It weighs just about 45 % of a regular chain. The square 5x5mm (3/16") cross chains with rectangular wear bars give a smooth ride and a sharp grip. The cross chains are soaked in carbon gasses for a longer time to obtain the unique double hradening - through hard and case hard. The chain's longevity is guaranteed.
TRYGG SCAN TRAC also comes in a cheaper version - Easy Trac (next on the list) - but if you're looking for mileage the Scan Trac is most economical in addition to the better traction.