Summary of recent changes
Current class specification.
Stock Traxxas Slash 2WD chassis, unmodified. Factory suspension positions. Traxxas/RPM aluminum parts per approved list. No sway bars. Min ride height 0.75" (incl. body). Added weight only within the main chassis plate. Traxxas LCG chassis legal.
Stock differential — no locking or modifying. Must retain diff action.
Stock XL-5 ESC and Titan 12T 550 brushed motor; or Hobbywing 13.5 XR10 Just Stock G3 sensored brushless; or Traxxas factory BL-2s combo. No cooling fans.
Open battery, hard-case only, 8.44V max charge. Stock center tray.
Any 2.2/3.0 SC wheel for the 2WD Slash (19mm F / 21.5mm R, 2+ vent holes). SC rule: DE GT6 (grooved or non-grooved), Proline Hot Laps, or Louise SC-Rocket M.
Traxxas tuning springs (uncut). Aluminum shock caps allowed. No 2-stage pistons.