the ready-to-run axial® capra™ 1.9 unlimited trail buggy is a “new from the ground up” design that any rc enthusiast eager for cutting-edge crawling will appreciate. its currie f9 portal axles provide extra ground clearance at the diff pumpkin for the best crawling performance. with the included spektrum™ stx3 3-channel transmitter and dig transmission, you can also switch on the fly between 4wd and fwd — locking the rear axle whenever you need the tighter turning radius of front drive power. the capra features a realistic tube chassis design and metal gears everywhere, from the center transmission to the lockers and portal axles. it rides on real-world inspired nitto trail grappler 1.9 tires mounted to licensed raceline 3-piece molded beadlock wheels. for pioneering performance in an rc trail buggy with factory-assembled ease, choose the capra 1.9 unlimited rtr. then just add batteries and get crawling! features: currie f9 portal axles the currie f9 portal axles add substantially more ground clearance at the diff pumpkin while also providing an excellent 7.39:1 gear ratio. completely ball bearing driven, and metal gears throughout for durability. hi-pinion gears the ring and pinion gears are machined steel, including the locker. the design utilizes a six bolt design for durability. dig transmission the ground up designed transmission features a "dig" function. with the new stx3 transmitter, the user can "switch" between 4wd and locking the rear axle while powering with front drive only, allowing for tighter turning radius on the rocks. the transmission also includes a full set of ball bearings and all metal internal gears for strength and durability. micro dig servo spmssx107 included!