[custom_adv] Motorcycle racing is the motorcycle sport of racing motorcycles. Major genres include motorcycle road racing and off-road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and land speed record trials. [custom_adv] Historically, "road racing" meant a course on closed public roads. This was once commonplace but currently only a few such circuits have survived, mostly in Europe. [custom_adv] Races take place on public roads which have been temporarily closed to the public by legal orders from the local legislature. [custom_adv] Two championships exist, the first is the International Road Racing Championship, the other is the Duke Road Racing Rankings. [custom_adv] The latter accounts for the majority of road races that take place each season, with an award for the highest placed rider. Prominent road races include the Isle of Man TT, North West 200, and Ulster Grand Prix on long circuits. [custom_adv] Ireland has many road racing circuits still in use. Other countries with road races are the Netherlands, Finland, Spain, Belgium, Germany, Great Britain (Oliver's Mount), the Czech Republic, Ukraine, New Zealand, Indonesia and Macau. [custom_adv] The 2019 YZ450FX utilizes an all-new engine design that features a new cylinder head, piston, cam shaft profiles, cylinder geometry and more – all working together to deliver class leading power and even more controllability for Cross Country racing. [custom_adv] Its bilateral beam frame is all-new with an optimized engine mounting position to improve the machine’s rigidity balance, resulting in improved cornering ability and traction. [custom_adv] The new Yamaha Power Tuner iOS® and Android® App and communication control unit connects the rider with the bike like never before. [custom_adv] Any motorcycle race is a thrilling and dangerous endeavor. The very nature of motorcycles makes them far more hazardous than other vehicles when mishaps occur, and pushing them to the limit on a racetrack makes them more dangerous than the already are – but to racers and spectators alike, the risk is worth it.