The Honda CM 450 A Hondamatic motorcycle specifications include a 450 cc (27.46 cu in) engine, a 2-speed gearbox, and a listed weight of 177 kg (390.2 lb).
Key specifications
1982Year released
450 ccDisplacement
177 kgDry weight
13 LFuel tank
How the Honda CM 450 A Hondamatic compares
This compares the motorcycle with all Honda models in this specifications database. The blue marker is this model and the grey line is the Honda database average.
Displacement450 cc
Low 49 ccAverage 563 ccHigh 1,832 cc
About 20% lower than the Honda database average. Around the 48th percentile across Honda models.
Fuel capacity13 L
Low 3.7 LAverage 13.5 LHigh 25 L
Very close to the Honda database average. Around the 49th percentile across Honda models.
This model Honda database average
Honda database percentile rankings
Percentiles show where this motorcycle sits across the Honda specifications database. They are descriptive database rankings, not performance ratings.
Displacement48th
450 cc — larger displacement than about 48% of Honda models.
Fuel capacity49th
13 L — larger than about 49% of Honda fuel tanks in this database.
Mechanical overview
Engine layout snapshot
Twin, four-stroke • 450 cc • Air cooled
Chassis snapshot
2-speed • Chain (final drive) • 3.50-18 front / 4.00-16 rear
Additional useful specifications
| Front tire size |
3.50-18 |
| Rear tire size |
4.00-16 |
| Estimated theoretical fuel range |
353 km |
| Bore/stroke ratio |
1.48:1 (Oversquare) |
Model information
| Year released |
1982 |
| Category |
Custom / cruiser |
Engine specifications
| Engine type |
Twin, four-stroke |
| Displacement |
450 cc (27.46 cu in) |
| Bore × stroke |
75.0 x 50.6 mm (3.0 x 2.0 inches) |
| Compression ratio |
9.1:1 |
| Valves per cylinder |
3 |
| Cooling system |
Air |
| Fuel system |
Carburettor. Keihin |
| Fuel control |
Overhead Cams (OHC) |
| Starter |
Electric & kick |
Transmission and drivetrain
| Gearbox |
2-speed |
| Final drive |
Chain (final drive) |
| Clutch |
Automatic |
Chassis and suspension
| Frame |
Steel |
| Front suspension |
Telescopic Forks |
| Rear suspension |
Dual Shock |
| Rake |
31.0° |
| Trail |
114 mm (4.5 inches) |
Brakes, wheels and tires
| Front brakes |
Single disc |
| Rear brakes |
Expanding brake (drum brake) |
| Front tire |
3.50-18 |
| Rear tire |
4.00-16 |
Dimensions and weight
| Dry weight |
177 kg (390.2 lb) |
| Overall width |
855 mm (33.7 inches) |
Fuel and emissions
| Fuel capacity |
13.00 L (3.43 US gal) |
| Reserve fuel capacity |
2.00 L (0.53 US gal) |
| Fuel consumption |
3.68 L/100 km (27.2 km/l or 63.92 mpg) |
| Greenhouse gases |
85.4 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Honda models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Honda information before relying on them. Visit the official Honda website.