The Honda CRF series was introduced in 2002 showcasing a line of motorcycles and 4-stroke motocross. This model series is supposed to have followed the Honda XR motorcycle series. From looks to tenacity, this line of dirt bikes literally has all those features that an avid racer can revise before putting on his helmet. These dual-support motor bikes having single cylinder and liquid-cooled engines range from 149cc to 649cc. The engines are built in a technology supporting Formula One mileage resulting in higher speeds and lessened reciprocating mass. The engine has an over-square design where the piston stroke is smaller than the cylinder diameter.
The piston skirt is that component that comes in contact with the wall of the cylinder. This part also helps to maintain the piston stability. The shorter the piston skirt, the greater the decline in reciprocating mass. The introduction of the piston skirts in the Honda CRF bikes also help to maintain the interval level for the piston rings, cylinder wall and the piston. Moreover, it also controls the piston’s slightest unwanted rotation around the wrist pin axis. This remarkable technology has highlighted the performance quotient of the dirt bike series to a great extent.
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 2012 FX MONSTER GRAPHICS Trim Decals KIT HONDA CRF 450 R 2009 12 15 02336 $105.95 End Date: Wednesday Feb-22-2012 10:24:16 PST Buy It Now for only: $105.95 Buy It Now | Add to watch list |  BARNETT DIRT DIGGER CLUTCH KIT HONDA CRF80F CRF 80 04 9 $67.99 End Date: Wednesday Feb-22-2012 10:27:27 PST Buy It Now for only: $67.99 Buy It Now | Add to watch list |  MOTION PRO CLUTCH FLYWHEEL HOLDING TOOL TRX YFZ LTZ CRF $28.99 End Date: Wednesday Feb-22-2012 10:30:50 PST Buy It Now for only: $28.99 Buy It Now | Add to watch list |
The first in CRF motorcycles series was Honda CRF450R; soon after that Honda CRF250R was launched in 2004 followed by CRF450X and Honda CRF250X models. Most of the bikes in this series have been built for off-road use. It’s basically the 4-stroke, high performance engines that challenge the older generation ones in producing more mileage per pound. However, if you ask about their drawbacks, there’s only one that can be mentioned and that is maintenance. Since these bikes have been designed for off-road purposes the power level has been highly boosted. This will in turn affect the longevity of the machine unless proper maintenance is provided.
The latest model of Honda CRF450R is one of the finest dirt bikes ever designed by the Honda group. Released in 2011, this model boasts of a 449.00 ccm displacement, 26 degrees fork angle and double disc front brakes. Front suspension is 48mm whereas rear suspension is characterised by single shock Pro-Link KYB having superior damping adjustability. With 58.7 wheel base, this Honda CRF model is the perfect companion for an avid bike racer. In 2007, the CRF X line contained mainly 2 models namely CRF 250X and CRF 450X. These bikes differed from the R series in a lot many ways like electric start, engine tuning, lighting, large fuel tank size, exhaust tuning and better gear ratios.
In 2008 the L series of Honda CRF category was launched and it included the 230L model. Additional to electric start, this dirt bike also had those features that are generally seen in the CRF series. What made it stand out was dual-sport capability. The XR R line of CRF bikes was also released in the same year. It included the liquid-cooled engine model of 65-0R and the air-cooled engine model of 650L. The Honda CRF series is still considered to be the finest motocrossers and the leading seller in the category.