Honda CRF series

[2] The engines in these bikes use an over-square design, which means that the diameter of the cylinder is larger than the stroke of the piston.

This improves cold weather starting and makes the bike easier to maintain because of the lack of a carburetor to clean.

Typically, these bikes come in low-power and confidence inspiring configurations for new market entrants.

These liquid-cooled four-stroke machines were designed to be utilized purely for closed-course motocross racing.

This machine is built as a CRF-450R optimized for hare scramble, hard enduro, and GNCC style racing.

Essentially the same as the CRF-450R except offering an electric start, larger fuel tank, and an 18-inch rear wheel as standard equipment.

This bike is to bridge the gap between the more mild X-model and the closed-course race style R model.

[5] Differences from the R models include lighting, electric start, suspension settings, engine and exhaust tuning for more low-end torque, larger fuel tanks, and a more rugged widespread ratio transmission.

In 2008, the CRF230L was introduced as an entry-level dual sport and was street legal from the factory, but still retained a dirt-oriented design.

[8] In 2008, the CRF230M was the first to offer a supermoto version of the original dual sport, which had several mechanical and cosmetic differences including: In April 2013, exactly one year after the initial launch of the CRF250L, Honda announced plans to sell a supermoto version of their dual-purpose motorcycle in Europe.

[9] The CRF250M is based on the popular dual-purpose CRF250L, with revised suspension, uprated front brake and 17-inch wheels with wider road tyres.