FSA’s range of high quality mountain bike cranksets are designed according to a fully-modular system, meaning that any rider or mechanic can easily, quickly and safely swap out the spider, spindles and chainrings from one set to another. It also features a built-in chain-line adjustment system so that wider Boost and traditional non-Boost configurations can each be accommodated with the same cranksets – so essentially one crankset works across any bike.