| MODEL | HONDA NS 125F 1987 |
| Year | 1987 |
| Engine Type | Two stroke, single cylinder, reed valve induction, ATAC exhaust chamber |
| Displacement / Capacity | 124.5 cc / 7.6 cu in |
| Bore X Stroke | 56 x 50.6 mm |
| Compression Ratio | 6.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 18.6 kW / 25 hp @ 7000 rpm |
| Max Torque | 1.8 kgf-m / 13.0 lb-ft @ 8000 rpm |
| Ignition | Capacitor discharge electronic ignition |
| Induction | 26 mm Dell'Orto PHBH 26 FS carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Separate oil lubrication |
| Gear Box | 6 Speed |
| Clutch | Wet multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Double cradle, square-section steel tube |
| Front Suspension | 35 mm Marzocchi telescopic fork, non-adjustable |
| Rear Suspension | Pro-Link monoshock, adjustable Marzocchi hydraulic damper |
| Front Brakes | Single 254 mm disc, 2 piston caliper |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1350 mm / 53.1 in |
| Ground Clearance | — |
| Dry Weight | 115 kg / 253 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-16 |
| Rear Tyre | 3.50-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 14.5 Litres / 3.8 US gal |
| Fuel Consumption | — |
| Top Speed | — |
1987 was the final season for the naked NS 125F, now sold alongside the fully faired NS 125R and RII built on the same engine and chassis. Little changed mechanically, and the model was replaced for 1988 by the more powerful, aluminium-framed NSR 125F.
