PRISTINE CONDITION! Used 2021 Billiard Red Harley-Davidson Street Glide FLHX For Sale! The look is backed up by the refined power of a Milwaukee-Eight 107 engine and high-performance suspension for an unmatched ride. The optional RDRS Safety Enhancements is a collection of technologies designed to enhance rider confidence during unexpected situations or poor road conditions. The systems utilize advanced chassis control, electronic brake control, and powertrain technology to assist you with accelerating and braking in a straight line or while in a turn. The original stripped-down hot rod bagger. Come in and check it out before it's gone.