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Honda CRF150RB BIG WHEEL 2021 Parts & Accessories

First introduced in 2003, the Honda CRF150 Series (CRF150F and CRF150R) represents Honda's dual-track approach to youth and intermediate off-road performance. The air-cooled CRF150F (2003–2017) was engineered as an accessible, ultra-reliable trail bike featuring forgiving power delivery, low maintenance requirements, and user-friendly trail ergonomics. In 2007, Honda introduced the revolutionary CRF150R and CRF150RB (Expert/Big Wheel), a pure race-bred four-stroke competition motocross machine featuring a high-revving 149 cc liquid-cooled Unicam engine designed to directly compete against 85 cc two-stroke race bikes.

• Engine Architecture: 149 cc air-cooled SOHC 2-valve 4-stroke (CRF150F) / 149 cc liquid-cooled Unicam 4-valve 4-stroke (CRF150R/RB)
• Power Output: Approx. 12 HP @ 8,000 RPM (CRF150F) / 22.5 HP @ 12,500 RPM (CRF150R/RB)
• Fuel Induction: 24 mm piston-valve carburetor (CRF150F) / Keihin 32 mm flat-slide FCR carburetor with Throttle Position Sensor (CRF150R/RB)
• Frame Construction: High-tensile steel box-section frame (CRF150F) / Lightweight semi-double-cradle steel frame with aluminum subframe (CRF150R/RB)
• Front Suspension: 35 mm leading-axle Showa telescopic forks (CRF150F) / 37 mm fully adjustable Showa inverted cartridge forks (CRF150R/RB) providing up to 275 mm (10.8 in) travel
• Rear Suspension: Pro-Link rear linkage with single shock providing up to 282 mm (11.1 in) wheel travel
• Braking Systems: Hydraulic single front disc brake (240 mm) and rear drum brake (CRF150F) / Hydraulic front (220 mm) and rear (190 mm) single wave disc brakes (CRF150R/RB)
• Transmission & Drivetrain: 5-speed manual transmission with heavy-duty wet multi-plate clutch and chain final drive
• Wheel Sizes: 19-inch front / 16-inch rear (CRF150F & CRF150RB Expert) or 17-inch front / 14-inch rear (CRF150R Small Wheel)
• Curb Weight: 106 kg (233 lbs) wet weight (CRF150F) / 84 kg–85 kg (185 lbs–187 lbs) wet weight (CRF150R/RB)