Watch Robbie Maddison jump 378′ on NYE

Robbie Maddison and Levi LaVallee traveled a combined 790’6” as they jumped side by side across the San Diego bay during Red Bull’s No Limits 2012 NYE. On his way to a new snowmobile jump record of 412.6′, Levi LaVallee’s … Continued

2010 Yamaha YZ450F: reverse cylinder, no battery

By reversing the cylinder on the 2010 Yamaha YZ450F, inertial mass is centralized and the intake track is straightened. That means more power and better handling. Additionally, the cylinder is offset so the connecting rod is vertical when the force…

James Stewart dispels 2010 Yamaha YZ450F rumors

We've already shown you the 2010 Yamaha YZ450F and its reverse-cylinder engine, but Yamaha continues to pretend that the whole world hasn't seen it. In this video, James Stewart responds to a bunch of nonsense rumors from various Yamaha employees….

2010 Yamaha YZ450F leaked with reversed single-cylinder

Update: the 2010 Yamaha YZ450F has been officially unveiled and, yeah, this was it. Click here to see it.This shot of the 2010 Yamaha YZ450F is getting a lot of attention and rightly so. We can't remember having seen…

Roland Sands Design 450 Super Single goes on sale

The first of Roland Sands’s 450 Super Singles are on sale now. $14,999 buys you a WR450F chassis and engine tilted forward onto race-spec R6 forks and PM Racing wheels. The engine is tweaked to produce about 60bhp. Fifteen large…