2-Speed Transmission Kit for TRX-4M™ Model Series Traxxas #9891 D Wirelessly connect your Spektrum DSMX

Wirelessly connect your Spektrum DSMX / DSM2 radio to your computer

So you know what to prepare for: As soon as the inside curbs with their eye-catching colours can be seen

You can build the track parts either as a bridge-like crossing or as a camel hump

2m with AS3X and SAFE Select Technologies

Packed with all the fantastic features found on the original kit

2-Speed Transmission Kit for TRX-4M™ Model Series Traxxas #9891 D Wirelessly connect your Spektrum DSMX2 Speed Transmission Kit for TRX 4M Model Series Traxxas #9891 Two speed transmission, complete (32. 7: 1 and 9. 9: 1 gear reduction ratios) (includes Titan 87T motor) New drop in assembly includes motor Adds manually selectable low range gear for technical crawling Combine with portal axles for the ultimate off road machine TECH CORNER: Portal Axle Gearing Options Installing portal axles adds additional gear reduction for ultimate crawling speed and