Ready to upgrade your Losi 1/4 scale Promoto-MX dirt bike? This aluminum wheel hub hex set replaces the stock plastic parts for much better durability and smoother performance. Made from tough 7075-T6 aluminum, they're built to handle more wear and tear from jumps and landings. The design includes larger inner bearings (specifically 5x14x5mm and 8x16x5mm sizes) for smoother wheel rotation. The package has everything you need: one front hub hex with a positioning column and two bearings, and one rear hub hex with its column and two different bearings. They fit the LOS06000 (FXR) and LOS06002 (Pro Circuit) RTR models perfectly. The green color adds a cool custom touch. If you're serious about bashing or racing your big-scale bike, these metal hubs are a smart upgrade to prevent breakage and keep you riding longer.