The 2010 Kawasaki KX450F is now a fact on dealership floors and it comes with a whole range of improvements that are more than enough for a preview of this new model year. Like with all previous generation models, the goal here was to improve performance and reliability as well as rider comfort and looks.
Kawi is quite proud of their new KX450F and they have plenty of reasons to also be enthusiastic about the year that follows. You see, more power and less weight will always do the trick in the right hands.
Kawasaki now offers the KX250F motocross model as a 2010 model year. Not only that, but the quarter-liter racer is entirely new as a result of engineers aiming towards a higher revving and implicit more powerful, but also more reliable engine. Once you’ve done that, every single piece of the machine qualifies for a proper revision and that’s how dirt bikes end up being tweaked each and every year. > More
For 2010, Husqvarna worked to deliver a new motocross range that is composed from models characterized by more engine performance and better handling, while also being more reliable and weighing less. The new Husky TC450 is the first example in that matter as it was derived from the racing machines of Husqvarna’s World Championship Teams. > More
Yamaha has released a video explaining the modifications done to their quarter-liter motocrosser of latest generation, the YZ250F. The bike now features a bilateral beam frame, while the engine now benefits of new valve train, carburetor and exhaust.
Overall, the new 2010 Yamaha YZ250F is supposed to offer a new riding position, handle sharper and deliver a more power with less noise. Sounds tempting to me!
This may not be the latest commercial that Yamaha made for their dirt bike lineup, but it sure is the most inspiring seen yet. Looking at it, most riders feel like gearing up and hitting the dirt on whatever model they got and that’s precisely what I’m planning to do now.
Ronnie Renner broke his own world record established last year at the famous Santa Monica Pier, when he jumped 59’ from the ground with his KTM motorcycle during the third edition of the Red Bull Experiment.
Last Saturday in Chicago, the daredevil managed to reach 63’ 5" from the ground and his performance was certified by Guinness World Records, making the American motocross star the main attraction of the Red Bull High Rise event.
“It’s been crazy. I’m so pumped to have done it,” said Renner after his jumps. “What a killer vibe! All these people coming out to see me and they were psyched. I could hear the crowd cheering.”
Hit the jump to see the video from the amazing event.
For 2009, Aprilia decided to enlarge their success area from supermoto (SXV) and enduro (RXV) to motocross with the new MXV 4.5 model. Don’t be fooled by the bike’s similar looks as Aprilia spent a lot of time modifying the platform in order to prove efficient for motocross riding. The frame and fuel tank suffered radical changes, while the engine has been worked on from airbox to exhaust. > More
Robbie Maddison came up with a very spectacular way to promote the upcoming Battersea Power Station round of Red Bull X-Fighters scheduled to take place on August 22 in London. The daredevil performed a no-handed backflip between the two open sections of Tower Bridge spanning the Thames in London at a speed of 40 mph.
Although the stunt took place early this morning, all the elements were on Maddison’s side and he managed to land smoothly.
Very communicative, the stuntman shared a few impressions with the press: "People say I’m crazy, but I just want to push the boundaries of my sport and my body to the limit and I love taking on these huge challenges," said Maddison. "It was an incredible feeling to fly between the two towers and over the Thames".
The photos are courtesy of Getty Images.
Hit the jump to see the actual video from the event.
With the 2009 RXV 4.5 – 5.5, Aprilia proves that development never stops as the world of racing is a continuous inspiration for road legal motorcycles such as the two reviewed today. Featuring an even lighter chassis than the previous model year, an upgraded V-Twin motor and new design, the RXVs are some of the most highly acclaimed off-road motorcycles of this year. > More
Those who were wondering what more could there be changed at Yamaha motocross bikes in order to improve performance are most likely to receive their answer with a single look at this spy picture of the 2010 Yamaha YZ450F reverse-cylinder.
This Powerpoint rendering shows how the new construction method allows the bottom end of the engine to move forward in the chassis, improving weight distribution and enhancing handling. This way, the exhaust pipe has a straight path towards the silencer and doesn’t need to be taken in consideration when doing the math for the front wheel clearance and also the inlet tract can be simply redesigned to go straight from the fuel injector to the combustion chamber. It even makes us wonder why Yamaha didn’t consider this possibility for the YZ450F so far.
Yamaha is supposed to unveil the completely new dirt bike within the next months and we reckon that it will blow away the competition.
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