2015 SUZUKI RM-Z450L5, The RM-Z450 continues to evolve for 2015, delivering a higher level of performance while maintaining the great balance of the current model. The 449cc 4-stroke liquid-cooled DOHC 4-valve fuel-injected engine along with new performance upgrades straight from the factory is the reason why champions choose Suzuki!Key FeaturesThe Suzuki Holeshot Assist Control (S-HAC) is a selectable launch mode system derived straight from the factory race bike to help riders launch from the starting gate for an early lead. There are three modes so riders can choose the best option for their skill level and riding conditions.A Mode: For hard surfaces or less than ideal conditions at the starting gate, hold down the S-HAC switch for more than 0.7 second; B Mode: When there is better traction and a more aggressive launch is needed, hold down the S-HAC switch for more than 1.8 second.The SFF-Air suspension is an evolution of the SFF system with no coil spring, reduced weight, increased inner tube diameter, and increased damper rod/piston size. The SFF-Air is made of 3 chambers and riders change the spring rate with an air pump instead of changing out the coil springs.Engine start has been improved with a longer kick starter lever for easier operation, a redesigned kick drive gear, a relocated kick idle gear, a newly added breather gear, and a redesigned decompression system that works more precisely and efficiently.* Price shown is net price after any factory to customer rebates and does not include applicable taxes, license, 100.00 doc fee, freight or setup charges.