Utility Cycling - Building A Trailer Hitch - OK, I have the new tow bike, a 2010 Charge Mixer 8... The new Mixer with the venerable Cannondale. My old Cannondale will be retired from towing duty, and be come my ride bike, the Mixer 8 will become the workhorse. The Mixer 8 is a steel framed bike, Tange Prestige Double