- Alphatrail AT-1230 Chain designed for 12-speed bicycles and 126 links - Compatible with Shimano derailleurs (Dura Ace, Ultegra, 105, XTR, Deore XT, SLX, Metrea, GRX), SRAM (Rival, Red, Force, Apex, XX1, X1, X01, GX, NX), Campagnolo (Potenza, Centaur), KMC and Connex - Made of carbon steel with Q-Carbon technology, which extends service life up to 8 times longer than conventional chains - Includes high-quality chain connector, pre-lubricated and non-directional for easy installation - High tensile strength (920 kp), ideal for heavy-duty mountain and road use - Approximate longevity of 7,000 km depending on riding style - Compatible with 12-speed shifting systems, for both mountain and road bicycles