2014 Wheat Harvest: Challenger & CLAAS June 24, 2014 by farmlifetoday bigtractorpowerTue, June 24, 2014 12:02pmURL:Embed:Challenger MT755C on grain cart duty with a Kinze 1100 CLAAS Lexion 670 TT CLAAS Lexion 750 TT CLAAS Lexion 730 CLAAS Lexion 760 TT