| Model | CRF125F | CRF125F Big Wheel |
| ENGINE | ||
| Type | 124.9cc air-cooled 25º single-cylinder four-stroke | |
| Valve Train | SOHC; 2 valves | |
| Bore x Stroke | 52.4mm x 57.9mm | |
| Compression Ratio | 9.0:1 | |
| Induction | Fuel injection w/ 22mm throttle bore | |
| Ignition | Full transistorized | |
| Starter | Push-button electric starter / kick | |
| Transmission | Constant-mesh manual w/ 4 speeds | |
| Clutch | Multiplate wet | |
| Final Drive | #420 chain; 13T/46T | #420 chain; 13T/49T |
| SUSPENSION | ||
| Front | 31mm conventional telescopic coil-spring fork; 5.9 in. travel | 31mm conventional telescopic coil-spring fork; 6.7 in. travel |
| Rear | Pro-Link system w/ single shock; 5.5 in. travel | Pro-Link system w/ single shock; 6.6 in. travel |
| BRAKES | ||
| Front | Single hydraulic caliper w/ 220mm disc | |
| Rear | Mechanical 95mm leading-trailing drum | |
| TIRES | ||
| Front | 70/100-17 w/ tube | 70/100-19 w/ tube |
| Rear | 90/100-14 w/ tube | 90/100-16 w/ tube |
| MEASUREMENTS | ||
| Rake (Caster Angle) | 27.5° | |
| Trail | 81mm | 94mm |
| Length | 69.7 in. | 73.1 in. |
| Width | 29.1 in. | 30.3 in. |
| Height | 39.4 in. | 42.1 in. |
| Ground Clearance | 8.3 in. | 10.3 in. |
| Seat Height | 29.1 in. | 30.9 in. |
| Wheelbase | 48.0 in. | 49.4 in. |
| Fuel Capacity | 1.0 gal. (incl. 0.2 gal. reserve) | |
| Curb Weight* | 194 lbs. | 199 lbs. |
| OTHER | ||
| Color | Red | |
