Traxxas was started in 1986 with an idea for what was at that time an entirely new concept for a fully assembled, hobby-class R/C car. This new car would have all the same benefits of a hobby-class kit such as replaceable parts, hop-ups, and a high-quality component radio system, however it would be fully assembled with a colorful body, right out of the box. Traxxas coined the term "Ready-To-Run" (RTR) to describe this new class. Since a fully assembled, ready-to-run car would appeal to the entry-level beginner, a toll-free customer support line was set up from day one to service an entirely new category of hobby consumer. At first, acceptance of the RTR concept was slow because traditional R/C kits had always been unassembled. Once people realized that a Traxxas RTR had the same performance and quality as the traditional R/C kits, only that they didn't have to build it, the ready-to-run car was a runaway hit! A kit version would still be offered for those who still wanted to have the building experience.
From the Manufacturer
Center Differential for E-Revo and E-Maxx The new Traxxas center differential for E-Revo and E-Maxx independently transfers power from the transmission to the front and rear differentials for smooth power delivery. This is the perfect solution for putting power to the ground in rough conditions and maximizing corner speed. The center differential is sealed, and can be adjusted by using different fluid viscosities for specific driving conditions. The Traxxas center differential drops directly into the E-Revos and E-Maxxs gearbox, and is sold fully assembled and filled with 100K wt. silicone fluid.