I dont know if this will help but I have a 2.0 version Losi starter box.The belt in it broke just after I bought it.I replaced it with this:
http://cgi.ebay.ca/LOSI-8B-T-2-0-Sta...item3f050f0dd3 This belt is 100 times better than the original.Just make sure what box you have before hand if you plan on getting one of these belts.All I did when I found this belt was look up the Losi part number for it then search ebay for that number.Hope this helps.