Weight of the aluminum pulleys is 22g a set. Weight of titanium, 24g.
The machined titanium pulleys outlast their machined aluminum brethren by a factor of three.
The Coated Bearings have races 75% harder than our Standard hardened-steel races. They outlast our Standard Bearings by 60%. Frictional drag in the Coated version is decreased by over 50% compared to our standard bearings.
There are different upper and lower pulleys, are marked as such, and have directional arrows etched on them.
These pulleys are designed to work with stock SRAM pulley spacers. You’ll need to save those from your stock pulleys when installing CeramicSpeed.
The kits come with CeramicSpeed oil in a 15ml dropper bottle. The bearings come with oil in them already. The dropper bottle is for maintenance.