What is your intended end use? That should dictate your starting point. Scan through the threads on Bombers in this section to get some great insight, go a few pages deep to find the gold. From budget to deep pockets builds. If you are building a go faaaaaaasssssssttttt rig, look up white trash's rig. General use, Bill in Vic, the BGR aluminum cage rig of 2-shot, screamer's, all well documented threads. Durok's is good as well. As with mine, and me wanting a 2 speed, surprisingly, most everyone tried to talk me out of a 2 speed and accomplish more speed and torque with a bigger motor and higher battery s count. So I did that. I think the weakest link out of the gate excluding electronics is the front dog bones in the steering, diff gears are probably a close 2nd. This said, I had picked a Savy rig and ran it on 3s, 100% bone stock and had a lot of fun with it, goes about 8 - 10 mph pinned. I wasn't trying to move boulders with the steering mind you. I gave it to my son for his birthday and he hasn't broken it yet either. One final comment as well, shorty packs for the battery so you have room for the adapters for the Spektrum connectors, you will need a male Spektrum to whatever connector your battery may have, both Deans and XT 60 for me. Its nice to see some life in this section, I enjoy my Bomber and look forward to seeing fresh builds here. "thumbsup"