I agree the X ray is cool, but the aftermarket kits are hard to find. I emailed X ray and got the run around. SO I went wth the Vendetta since I have an indoor and outdoor track. I did the rage system on the latest vendetta mini. It's wild and everything fits, I did a full write up for everyone to see. Check the picture out on the www.mimxra.com message board under the mod section. with the stock gearing I bet 80mph is not out of the question. I should have video soon for this on the site.