IZUMI Super Toughness 單速鏈條！！
You won’t find a stronger, longer-lasting,or more beautiful chain than the legendary Super Toughness, made from pureJapanese steel. We use a special high-carbon alloy for the connectingpins—often used in low-friction ball bearings—which offers a 300 percentincrease in durability compared to a standard chain. One of the few chains thatmeets the strict certification requirements of the Japanese Keirin Association(NJS), the Izumi-V is renowned among keirin racers for its strength andefficient power transfer. The proprietary surface treatment increases abrasionresistance and creates the striking contrast of gold outer plates againstmidnight-blue inner plates.
Available in 1/2x1/8 (NJS approved) and1/2x3/32 versions
380g (1/8-inch pitch, 106 links) 362g(3/32, 116 links)