Going to Canada and buying a 2012 Honda XL700V Transalp won't get it into this country unless it's on the list of approved imports.
All the various details are here:
http://www.nhtsa.gov/cars/rules/impo...ges/page3.html
An older bike is much easier to import, and one that someone has already gone through the hassle of getting titled somewhere in the USA is usually good to go in CO after a VIN verification.3. Requirements to lawfully import motorcycles or motor-driven cycles for on-road use.
If a motorcycle or motor driven cycle is capable of a top speed above 20 miles per hour and is equipped with components (such as lights, mirrors, and turn signals) that are needed for on-road use, NHTSA will regard it as having been primarily manufactured for such purposes. Motorcycles and motor-driven cycles with these capabilities and equipment cannot be lawfully imported into the U.S. unless they were originally manufactured to comply with all applicable FMVSS and bear a label certifying such compliance that is permanently affixed by the original manufacturer. The label must be affixed to a permanent member of the vehicle, as close as is practicable to the intersection of the steering post and the handle bars, so that its contents can be easily read without moving any part of the vehicle except for the steering mechanism. In addition, the vehicle’s manufacturer is required to submit to NHTSA identifying information on itself and the products it manufactures to the FMVSS (as required by 49 CFR Part 566), provide NHTSA with information the agency would need to decipher the VIN the manufacturer is required (under 49 CFR Part 565) to assign to each motor vehicle manufactured for sale in the U.S., and designate a U.S. resident as its agent for service of process (as required under 49 CFR 551.45).