A single set of Ceramic Built-In Longboard distance bearings. Designed and proven to go the distance and handle the side loads of pumping. A set for training and a set for raceday. All for a great price. Here is a great review. https://surfskate.love/wheel-bearings-guide-surfskating/
On February 25, 2025 Joe Mazzone skated GBomb Bearings to a world record 320 miles in 24 hours at the Miami Ultraskate, proving these are some of the best bearings available.