Not all chainrings are created equal, and if you need proof of this, look no further than these chainrings that Praxis made exclusively for us. Their custom design revolves around a cold forged and hard-anodized 7075 T6 Aluminum thats incredibly stiff and very respectable in the weight department. Shifting between rings is also smooth and precise, as Praxis included several elevators and specially tuned ramps around each ring.