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… Playable Fountains Splashpad® Water Journey™ Spraypoint®You may also like… Elevations™ & PlayNuk™ Miniature Golf Racer Chainguard Set Racer Bottom Bracket Assembly