Yamaha has refined its distinct rearward-slanted cylinder design for the 2018 YZ450F engine – complete with a rear exhaust and forward-mounted downdraft intake system.
Travis Pastrana's career has spanned so many sports and so many milestones.
The Lucas Oil Pro Motocross Championship returned to a full-size track for Round 3 as riders battled it out at the Ironman National.
Graham Jarvis successfully defended his Roof of Africa title at the final Hard Enduro of the year. The 41-year-old out-gunned a charging Alfredo Gómez.