Hub quality shows up in two ways: engagement and bearing longevity. Faster engagement — fewer degrees of rotation before the drivetrain catches — matters most in technical terrain and hard accelerations, where a delayed pickup costs momentum. Bearing quality affects both rolling resistance and service life; ceramic bearings reduce friction compared to standard steel, and coated ceramic variants improve durability further. Skewers and through-axles affect stiffness at the wheel-frame interface — a detail that becomes obvious once you’ve ridden a precision-machined axle against a basic one.

RA Cycles stocks hubs, bearings, and hub components across the full range. Chris King’s R45D is the flagship complete hub — machined in the USA with their Ring Drive engagement system — available in road and disc configurations around $700. CeramicSpeed ceramic wheel kits upgrade existing wheelsets with ceramic or ceramic-coated bearings, with fitments covering DT Swiss, Zipp, ENVE, Lightweight, and Bontrager hubs from $630 to $945. For individual bearing replacement, Enduro’s sealed cartridge range covers most common hub sizes from $7. Spare parts — DT Swiss Star Ratchet springs, Industry Nine pawl kits, Problem Solvers axle nuts — round out the collection from $2.50.

Browse the full CeramicSpeed and Chris King collections, shop all DT Swiss components, or explore all bike wheels at RA Cycles.