Izumi’s in-house engineering division is continually devoted to creating new innovations in chain technology, like the flush-pin multi-speed chain we developed in 1981 that became the basis for all multi-speed chains made today.

Izumi’s research and development team investigates new steel alloys to find the best materials for modern bicycle chains. Our in-house testing equipment lets us rigorously test chains to measure hardness, strength under load, friction, durability, and wear, to ensure every Izumi chain meets our standards for exceptional quality, efficiency and long service life.