F1 Ceramic Derailleur Pulleys, because nothing spins more than your pulleys! Upgrading to ceramic derailleur pulleys is essential to get the most performance out of your bicycle. If you are looking for a best "bang for the buck" upgrade, ceramic derailleur pulleys are the place to upgrade. Remember, nothing on your bike spins more and ceramic derailleur pulleys will spin with less resistance than steel pulleys.
Each and every F1 Ceramic Derailleur Pulley is 100% Handbuilt in the USA! This means your ceramic derailleur pulleys will be fresh, fast and ready to be ridden by you.... FAST!!
F1 Ceramic Bearings are built by hand, right here in the USA!