1975 Honda CR125 Specifications and Specs
Specifications and workshop reference information for the 1975 Honda CR125, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | Air-cooled 2-stroke single |
| Displacement | 123 cc |
| Bore × Stroke | 56.0 × 50.0 mm |
| Compression Ratio | 7.6:1 |
| Maximum Power | 21.7 hp @ 9,500 rpm |
| Maximum Torque | 21 to 23 Nm |
| Carburetor | 28 mm Keihin | Replacement Options |
| Lubrication | Premix |
| Fuel Mix Ratio | 32:1 | Premix Calculator |
| Ignition | Magneto |
| Spark Plug | NGK B8ES |
| Spark Plug Gap | 0.7 mm |
Transmission
| Transmission Type | 6-speed close-ratio |
| Clutch | Wet multi-plate |
| Final Reduction | Chain drive |
Dimensions
| Overall Length | 2080 mm |
| Overall Width | 890 mm |
| Overall Height | 1090 mm |
| Wheelbase | 1,360 mm |
| Ground Clearance | 260 mm |
| Fuel Tank Capacity | 6.0 L |
| Bearing Sizes |
Bearing Finder |
Chassis
| Frame Type | Steel tube frame |
| Front Suspension | Telescopic fork | Fork Oil Levels |
| Rear Suspension | Twin shocks, adjustable |
| Front Suspension Travel | 152 mm |
| Rear Suspension Travel | 152 mm |
Brakes & Wheels
| Front Tire | 3.00 × 21 |
| Rear Tire | 4.10-18 |
| Front Brake | Drum |
| Rear Brake | Drum |
125cc Other Specs
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