Pro-Line Velocity 40 Wheel Yellow (2) Proline 40 Series Velocity Wheels. Fits the Traxxas E/T-Maxx, HPI Savage, Associated Monster GT. The wait is over Monster Truck fans, 40 Series Velocity wheels are here for your racing and backyard punishment pleasure. Continuing to dominate the race market, Velocity style wheels are designed with the ultimate in performance and durability. They represent the continuing style designated by today’s top racers. Additional attributes of the 40 Series Velocity wheels are a featherweight design, more aerodynamic, and available in gleaming yellow, or ultra-bright white. Pick-up a set of the all-new 40 Series Velocity wheels…your Monster Truck’s performance, appearance and durability depends on it. · Tough / lightweight · Available gleaming yellow or ultra-bright white · Stylish Pro-Line flame logo molded to wheel surface · Used by today\\\'s top racers Width: 3 7/16" (87MM). Diameter: 4 1/16" (103MM)