Tires are 1" just like all the popular micro crawlers from Losi Micro crawler, Trail Trekker, ECX Temper, the clone version the FTX Outback (comes with super swampers) The REELY/Redcat Sumo crawler, the clone version from HBX has different wheels and tires, but has the same 7mm hex or pin as everything else. You can also get wheels from Rc4wd, the mini Gelande 2, GearHead on RPPhobby.com, and
http://lynxmicrotech.com which is Jim Frye from the Facebook Micro crawler group and Fungi on here. He also has a shape ways store.
https://www.shapeways.com/product/7ZJP8D32F/raptor-rock-bouncer-chassis-1-24-scale?optionId=62362919
All the 1.0 tires from RC4WD, The Losi Micro, Trail Trekker,Proline Ambush, and and Redcat Sumo should fit fine.
As far as the ESC, the Tekin B1r is very nice& tiny, but for the same or less $ I think the best ESC is the Castle micro sidewinder. New they are $50-$60, but you can get them for about $35-$40 used if you're patient. The castle micro is great because you can adjust all the same settings as the larger castle and really dial in your low speed control.
The. Micro castle ESCs will also do both brushed and brushless
For a non adjustable ESC the Xys-BL20a is very tiny and very inexpensive. Usually less than $10 shipped. It's a 20amp esc. There's also a 10amp version that's a bit smaller and a few dollars less. For either version there's one "with brake" and "without brake" they both have brakes, but the one listed as "without brake" has instant reverse which is great for crawling. "With brake" has a reverse delay. you'll have to pull the trigger back to stop, then release and pull back again "double tap" for reverse. Like a typical car ESC
The EcX motors should be a direct swap for a losi micro crawler,trekker, Micro T, Micro High Roller SCT, or rally all have the same motor. They are also able to be rewound by Dan Tyron aka Danally
He can give you a motor that has lower speed, more torque, Better low end control and cooler temps.
Unfortunately only the losi versions or "atomic bb" can be rewound by Dan and both are discontinued so hard to find.
If you're able to make a new motor plate or modify the factory mount you can install a larger 130 motor that was a common size in the Xmod,mini z, and micro Rs4. That mod is commonly called "the 130 big block"
You can also use pinions for the losi micro and gear down to a 10t or even 9t if you slot the motor mount holes. Brass pinions recommend.
The spur teeth also match with the losi micro, but I'm not sure if the spurs mount the same. I'll find out when mine gets here.
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