The Honda CRF150R was a racing dirtbike manufactured by Honda in 2007 and competed in the Mini Class series against many 85cc two-stroke bikes. Alongside the standard model, Honda also made available the CRF150RB Expert version, which was intended for larger riders.
In 2007, the Japanese motorcycle manufacturer released the first model of the Honda CRF150R, a small-displacement motocross machine powered by a 149cc single-cylinder liquid-cooled engine and a successor to the CR85R model.
The bike featured a powerful Unicam four-valve engine that delivered impressive power at a wide rpm range, and it only weighed 20 kg (44 lbs). Equipped with a fully-adjustable Showa suspension, high-quality Dunlop tires, and disc brakes both front and rear, the CRF150R was one of the best mini-racing machines Honda has ever made.
Also, compared to the standard model, the Expert was a version suited for larger riders that included a taller seat, more ground clearance, a larger wheelbase, larger tires, a longer swingarm, and a larger rear sprocket for better acceleration.
For suspension, the bike featured a 37 mm fully-adjustable inverted cartridge-type fork on the front and a Pro-Link fully-adjustable Showa shock absorber on the rear for optimum suspension performance and handling.
As for braking performance, the bike packed a single 220 mm disc with a hydraulic caliper on the front wheel and one 190 mm disc with a hydraulic caliper on the rear wheel for optimum stopping power.