G-Series cassettes feature steel cogs mated with an aluminum spider, a feature that saves weight and lessens wear on the hub’s cassette body. If weight is an issue for you, the G-Series is a no-brainer.

With so many new categories emerging in the world of drop-bar bikes, it can be easy to forget how much fun it is to attack pristine pavement on a traditional road bike. Tradition is what it’s all about with Centos. The finish is understated, the ergonomics feel right, and the performance is top-notch. If you’re looking for snappy, classy shifters with a proven racing pedigree, Centos is worth a look