Here it is at Lifan China site:
http://www.lifan.com/en/showproduct.asp?id=5222
Lifan doesn't have it listed on americanlifan.com but Hooper Imports has it:
http://www.hooperimports.com/product..._id=LF50QT%2D7
Oops...wait a minute, the hooper site says 4-stroke but the Lifan china site says 2-stroke?
Maybe the importer can chose a different engine...but of course we all know that all Lifan bikes are ALWAYS equipped the same way! :wink: