Q: HOW FAST IS THE 2010 CRF450? A: It’s not very fast. In fact, it is the slowest 450 motocross bike that we have tested in 2010. There is no shame in that, though, because Honda’s goal was to make the CRF450 “easier to ride.” And it is. The herky- jerky throttle response off idle has been seriously reduced, and the engine revs slower, which makes the powerband feel broader. For followers of the “450s are too powerful” crowd, Honda has built the perfect engine. Q: HOW DOES THE 2010 CRF450 RUN ON THE DYNO? A: It makes 50. 90 horsepower (with peak horsepower at 8400 rpm). How does that compare to other 450s? The 2010 CRF450 makes 3.0 horsepower less than the KTM 450SXF, 2. 8 horsepower less than the KX450F, and 1.7 horsepower less than the YZ450F. How does the 2010 Honda CRF450 compare to the 2009 CRF450? The 2010 CRF450 gives up one horsepower or more to the 2009 CRF from idle to 8000 rpm. At eight grand, the 2009 and 2010 models make the same horsepower. Then, as the engine goes flat on top, the 2010 model ekes out a small, three-quarter horse advantage on the rev limiter ( 11,200 rpm). How does the 2010 Honda CRF450 compare to the 2008 CRF450? The 2010 CRF450 has more power and torque from 5000 rpm to 7200 rpm. After 7200 rpm, the 2008 CRF450 engine pumps out over two horsepower more than the 2010 model (and does not go flat on top). Q: HOW WOULD WE DESCRIBE THE 2010 CRF450 POWERBAND? A: “Mellow” comes to mind. Q: WHAT IS THE 2010 CRF450 POWERBAND LIKE ON THE TRACK? A: In some ways, the 2010 powerband is an improve- ment over last year’s engine. Without the irritating bark off the bottom, the power is easier to roll on in ruts and off-camber corners. It is less jerky off the line and smoother when blipping it. Because it revs slower, the 2010 CRF450 powerband feels longer than last year’s rather abrupt engine. But, the longer powerband is a parlor trick, albeit a good one, because the CRF450 does not pull any higher in the rpm range than the short powerband of the 2009 CRF450. The best power is from 5000 rpm to 8000 rpm—after 8000 rpm the engine is flat...very flat.
CRF450 2010 Honda CRF450: Technically, the 2010 Honda CRF450 is identical to the
2009 model, but
there are some
small changes that
make the new model