| Model | CRF125F | CRF125FB |
| Engine Type | 124.9cc air-cooled single-cylinder four-stroke | |
| Bore x Stroke | 52.4mm x 57.9mm | |
| Compression Ratio | 9.0:1 | |
| Induction | 20mm piston-valve carburetor | |
| Ignition | DC-CDI | |
| Transmission | 4-speed | |
| Final Drive | 13T/46T | 13T/49T |
| Valve Train | SOHC; two-valve | |
| SUSPENSION | ||
| Front | 31mm leading-axle fork; 5.5 in. travel | 31mm leading-axle fork; 5.9 in. travel |
| Rear | Pro-Link single shock; 4.5 in. travel |
Pro-Link single shock; 5.9 in. travel |
| BRAKES | ||
| Front | 220mm hydraulic disc | |
| Rear | Drum | |
| TIRES | ||
| Front | 70/100-17 | 70/100-19 |
| Rear | 90/100-14 | 90/100-16 |
| Rake (Caster Angle) | 27°30' | 27°30' |
| Trail | 81mm (3.2 in.) | 94mm (3.7 in.) |
| Seat Height | 28.9 in. | 30.9 in. |
| Ground Clearance | 8.5 in. | 10.4 in. |
| Wheelbase | 48.0 in. | 49.4 in. |
| Fuel Capacity | 1.1 gal. incl. 0.2-gal. reserve | |
| Color | Red | |
| Curb Weight* | 192 lbs. | 194 lbs. |
*Includes all standard equipment, required fluids and full tank of fuel—ready to ride
Meets current CARB and EPA off-road emissions standards
