The shift module will only allow the transmission to shift when the Revo 3.3 has slowed down to a safe speed. The electronic control also prevents accidental shifting while the truck is in moving above certain speeds. OptiDrive allows constant drive engagement, so shifts are fast and seamless. Revo engineering makes it the smoothest reversing system available on any nitro truck. Traxxas Revo 3.3’s heavy-duty reversing transmission lets you easily back out of tight spots with just a flick of a switch, while the OptiDrive Electronic Transmission Control guarantees safe, smooth engagement every time. The Revo 3.3’s included EZ-Start battery and fast charger, everything you need to enjoy electric starting convenience is right in the box. Traxxas’ exclusive Smart Start technology monitors critical Revo 3.3 starting functions, automatically sensing and diagnosing potential problems for trouble-free engine starting every time! Once you’ve used EZ-Start you’ll wonder how you ever enjoyed a nitro engine without it. The Traxxas EZ-Start lights your glow plug and starts your engine quickly and smoothly at the push of a button. The EZ-Start is the safest, quickest and most reliable way to start your engine. Start your engines the EZ way, The Traxxas EZ-Start offers pure convenience with the true one-handed operation and complete push-button electric starting. It’s competition-proven power with convenience and reliability for all-day driving fun. Years of testing and proven performance deliver the easiest-to-tune, most dependable, most powerful Ready-To-Run engine available.

The TRX 3.3 Racing Engine features a precision composite slide carburetor, PowerTune cooling head, dyno proven IPS crankshaft, multi-port rear exhaust, and the starting convenience of the exclusive Traxxas EZ-Start system. The powerful TRX 3.3 Racing Engine is the heart of the Revo 3.3, delivering extremely superior race engine performance that’s unbeatable whether your on or off the track. These features are each specifically engineered and integrated into the model to provide capability and convenience that equates to fun and excitement! The Revo 3.3 defines what it means to have monster truck performance, the standard bearer for cutting-edge innovation and limitless capability that all others are measured against. The Traxxas Revo 3.3 has more than just an impressive list of features to offer.

Traxxas revo 3.3 parts diagram