The Hope Jockey Wheels Pair 12 Tooth has a lightweight but durable design, for those looking for reduced drag in their drivetrain.Hope Jockey Wheels Pair 12 Tooth FeaturesStainless steel cartridge bearings with low friction seals for reduced dragCNC machined from 2014 T6 aluminiumLabyrinth-style spacers encapsulate/protect the bearings, increasing product life and reducing maintenanceLightweight yet robust designAvailable in several coloursWill fit a wide range of Sram 11spd rear mechsWeight: 27g per pair