Hoyle33

iTrader: (15)

Update: I picked up the Traxxas TRX-4 Sport build kit.

I'm really liking this rig as a fun trail crawler (a little too top heavy for competitions, but that's not what I wanted to do anyways)

Pictures are posted below!

King DORK

iTrader: (53)

Esc/motor is easy. Hobbywing 1080 esc/ Holmes Hobbies 21 or 27 turn 550 brushed sport motor (best crawler bang for the buck). Any of the $20-25ish dollar 20+kg servos (Power HD, DS, JX) work great. Some guys use the inexpensive Flysky radios/receivers for crawling, I'd be sure to get one of the ones with endpoint adjustments so you don't burn out servos.

Of course if price isn't a consideration there are other brushless options and high dollar servo options but spending all that extra money won't necessarily make for a better, more capable crawler, in my opinion.

Njeffs8

iTrader: (7)

dpiRC

I'm a huge proponet of the trx4 sport kit. It was fun / easy to follow. The rig is VERY capable. I also went with the hobbywing 1080 / hh trailmaster 550 (make sure it's 550) 21t, and it works extremely well for me..but, this was my first crawler, so I've got it nothing to compare it to. In fact, there hasn't been anything I've run up that I couldn't crawl. I recently sped down a mountain I hiked to crawl, and with changing my spring rate, it was very capable trailing, too. These trucks are very durable, too. The sport is locked full time, which is great for trailing, and simple to drive. I wouldn't have it any other way. I don't want to fuss with switches, I want to focus on my line, haha.

The things I've added so far have been brass c-hubs, big brass outer portals, metal bead locks(Stock tires), and..the biggest upgrade, underdrive rear gears, for crawling.
You can check out my videos if you want to see what this things capable of. Here's the latest. I've got other videos to showcase, too, of course. Check em out on my channel.

Hoyle33

iTrader: (15)

For anyone interested, here is my TRX-4 Sport so far I'm excited for winter!