This model features a fully-modular system which means any rider or mechanic can easily, quickly & safely swap out the spider, spindles & chainring from one set to another. in addition, it also features a built-in chainline adjustment system, so that wider Boost & traditional non-Boost configurations can each be accommodated with the same crankset. This superb model is a perfect choice of upgrade for riders who want a versatile crankset which can be modified to suit your individual riding preferences & terrain conditions.