| MODEL | HONDA CRM 250AR 1997 - 1999 |
| Year | 1997 - 1999 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 66.4 x 72.0 mm |
| Compression Ratio | 6.2:1 |
| Cooling System | Liquid cooled |
| Max Power | 40 hp @ 8000 rpm |
| Max Torque | 3.7 kgf-m @ 6500 rpm |
| Ignition | CDI |
| Induction | PE31A 32 mm carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Inverted telescopic forks |
| Rear Suspension | Monoshock |
| Front Brakes | Single disc |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 895 mm / 35.2 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 110 kg / 242.5 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.7 US gal |
| Fuel Consumption | 36.0 km/L @ 60 km/h |
| Top Speed | — |
Photo: Samihasib, CC BY-SA 4.0, via Wikimedia Commons
Photo: Y Sekiai, CC BY-SA 4.0, via Wikimedia Commons
The CRM250AR (MD32) was the only production bike to use Honda's Activated Radical (AR) combustion, which controls self-ignition of a very lean mixture to cut two-stroke emissions and fuel use. Honda claimed about 32% better steady-speed economy and roughly half the HC emissions of the CRM250R, along with stronger low-down pull. Frame and engine are not interchangeable with the MKIII, and it was the last CRM250 before Honda moved to four-strokes.
