What to buy

[Overdriven]

The spur gear will hold the torque, it is a mod1 steel gear. The problem is it is huge spur gear, 65T I think and it needs to be that big because of the standard buggy ratio diffs and the big tires. Going with a smaller spur will result in a very small pinion and you'd still be overgeared, unless you go with a motor with around 1000kv. The big spur gear will push the battery tray off the side of the chassis a bit as a result, shouldn't be anything too serious though.

If you go with the 1717 on 6s, I'd start with a 14t pinion. I don't know the exact size of your tires, but if they're close to the original size you'll have a top speed around 40mph with the 14t pinion and 65t spur. Use the search feature on the site to get some reviews on various chargers and other equipment.