Recon has been making some of the lightest cassettes in the world for years now. Their Aluminum cassettes being the lightest for those looking for that extra weight loss on race days. The entire cassette is impressively machined out of a single piece of aluminum. The teeth are shaped during machining with ramps to help shifting performance bringing it to 11 speed standards. Recon cassettes are typically recommended as a race day option for events such as hill climbs. Shifting under extreme weight can result in broken or chipped teeth, which is why we recommended care be taken when using the Recon aluminum 11 speed cassette.
Each cassette (other than silver) features multiple surface coatings to improve wear life and durability.