REFINED FOR 2015
For 2015, Yamaha have made a handful of small refinements to their 450 class MX bike. These include suspension performance improvements with stiffer fork springs, new valving and a new fork outer tube giving better mid-to-end stroke performance and increased fork bottoming resistance. Implementation of quick-release air-box fasters reduces maintenance time. Also, the 2015 model has a new steel bottom engine bracket designed to increase rigidity and damping.