Hot Racing steel stub axles with aluminum 24mm wheel hexes for the Traxxas X-Maxx 6S. This set is an upgrade hop-up to the factory aluminum stub axle and plastic wheel hex. FEATURES: - CNC machined ANSI equivalent 1045 hardened steel stub axle with black oxide corrosion protection finish - CNC machined 6061 aluminum hex with blue anodized finish - Maintains stock 24mm hex - Replaces the stock aluminum stub axle and plastic hex hubs YOU WILL RECEIVE: - Four (4) steel stub axles - Four (4) threaded 24mm wheel hexes - Four (4) 4x21mm drive pins - Four (4) M5x5mm setscrews (lock the drive pin in place) REQUIREMENTS: - Installation - 2. 5mm hex wrench for setscrews - Removable thread lock (e. g. blue Loctite) for setscrews SPECIFICATIONS: - Hex width: 24mm - Thread: M12 - Total height: 46mm COMMENTS: - Replaces stock Traxxas 7753 aluminum stub axle and 7756 wheel hex hub - NOT compatible with the Traxxas X-Maxx 8S