Traxxas Trx-4 1 or 10 Scale Trail Rock Crawler Assembly Kit-82016-4

Everything came properly packed and complete. Had a blast building it. Awesome price

The product was not what was advertised on amazon. Very disappointed that a large company (amazon) could get the advertising so wrong

Good

Facile da montare, ma se c'erano le istruzioni in italiano era meglio,.... Anche perché se un articolo è venduto in Italia, la cara traxxas potrebbe fare uno sforzo no??

It took me a good amount of time to finally pick this particular model, since there are 8 kinds of TRX4. First of all, TRX4 has RTR which let you go out and fun right away. But there are 2 choices. One is classic (Defender, newer G-wagon, or Bronco), and another is trx4 sport. And there are building kit for both. Long wheel base with all the goodies (2 speed, diff lock) and a short wheel base with simple single speed and light weight trx4 sport. I was not able to decided what to get because of the price. I wanted to have fun in building it on my own, but it did not save me much of cost. For the price, trx4 sport buiding kit ($270) was the best bet with cool looking body and outdoor overlanding feature. But sport is a simplified version of trx4, and it did not have what the classis trx4 had. Then, the best bet was defender RTR ($470), since the body is just so great with all the features. (Defender Body itself costs about $190 if you purchase it seperately.) But at the same time, I wanted to find out how 2 speed transmission and the diff lock worked. I was always curious about those mechanism in RC world, and the best way to learn is to build my own. I really like assemble rc cars and model kits, and have been doing it for more than 30yrs. ----------- Assembling The direction is clear and neat with colored one. It seems very detailed, but I was somewhat confused and made few mistakes after all. The pinion gear and the rear axle were the bomber. To hold the pinion gear on the motor, the set screw must be used. There are two of them, but you MUST use the one with locktite on it. Otherwise, the pinion will move around, and the spur gear teeth may be damaged. The rear axle can be installed wrong way, and then front wheels and rear wheels would spin opposite direction. It is kinda obvious, because of portal axle but trust me. It can happen to anyone who would have portal axle for the first time. Also, those shafts' position can be mixed or confused while looking at the direction. Carefully compare the picture on the direction and actual one. Otherwise, you will have fun finding out how Traxxas engineers designed all the mechanical system. I have enjoyed and learned a lot, and had great time building it.

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