| MODEL | GILERA R1 125 1988 - 1989 |
| Year | 1988 - 1989 |
| Engine Type | Two stroke, single cylinder, reed valve |
| Displacement / Capacity | 124 cc / 7.6 cu in |
| Bore X Stroke | 56 x 50.5 mm |
| Compression Ratio | 13.0:1 |
| Cooling System | Liquid cooled |
| Max Power | 21.8 kW / 29.3 hp @ 9900 rpm (25.3 hp @ 9500 rpm at rear tyre) |
| Max Torque | 18 Nm / 13.2 lb-ft @ 10250 rpm |
| Ignition | Electric ignition with capacitive output |
| Induction | 28 mm Dell'Orto PHBH carburettor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Multi-disc, oil bath |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swing arm, gas single shock |
| Front Brakes | Single 240 mm disc |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 115 kg / 253 lbs |
| Wet Weight | 134 kg / 295 lbs |
| WHEEL SPECS | |
| Front Tyre | 2.75-21 |
| Rear Tyre | 4.10-17 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | 19.8 km/l |
| Top Speed | 134.4 km/h |
Trail-style 125 two-stroke with a liquid-cooled reed-valve engine tuned to just under 30 hp, six gears and a 21-inch front wheel. It adds electric start and more power over the RC 125 Rally.
