Facility Enhancements > Pedal Karts XL 4 Bottom Bracket Cartridge Details Related Articles Gallery The XL 4 Bottom Bracket Cartridge is a replacement part for Prime Karts XL 4 pedal kart Models.$30 XL 4 Bottom Bracket Cartridge quantity Add to cart Questions? Contact Us Others also viewed… Spraypoint® Splashpad® Water Journey™ Playable FountainsYou may also like… Outdoor Playgrounds Hampton 3-in-1 Pool, Dining, & Table Tennis Racer Bottom Bracket Assembly Spraypoint®