The Harley-Davidson Forty-Eight motorcycle specifications include a 1,202 cc (73.35 cu in) engine, power of 65 hp (47.4 kW) @ 6,000 rpm, a 6-speed gearbox, and a listed weight of 252 kg (555.6 lb).
Key specifications
The 2021 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Harley-Davidson Forty-Eight compares
This compares the motorcycle with all Harley-Davidson models in this specifications database. The blue marker is this model and the grey line is the Harley-Davidson database average.
Very close to the Harley-Davidson database average. Around the 61st percentile across Harley-Davidson models.
About 6% lower than the Harley-Davidson database average. Around the 36th percentile across Harley-Davidson models.
About 19% lighter than the Harley-Davidson database average. Around the 17th percentile across Harley-Davidson models.
Very close to the Harley-Davidson database average. Around the 30th percentile across Harley-Davidson models.
About 54% smaller than the Harley-Davidson database average. Around the 3rd percentile across Harley-Davidson models.
Harley-Davidson database percentile rankings
Percentiles show where this motorcycle sits across the Harley-Davidson specifications database. They are descriptive database rankings, not performance ratings.
65 hp — more powerful than about 61% of Harley-Davidson models with power data.
1,202 cc — larger displacement than about 36% of Harley-Davidson models.
252 kg — heavier than about 17% of Harley-Davidson models, or lighter than about 83%.
665 mm — taller than about 30% of Harley-Davidson models.
7.9 L — larger than about 3% of Harley-Davidson fuel tanks in this database.
Dimensions compared with Harley-Davidson average
Each measurement is compared with the average value across Harley-Davidson models where that dimension is available.
2,164
2,376
9% below average.
1,495
1,599
6% below average.
665
689
3% below average.
110
128
14% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 130/90-B16 |
|---|---|
| Rear tire size | 150/80-B16 |
| Engine oil capacity | 2.80 L (2.96 US qt) |
| Estimated theoretical fuel range | 161 km |
| Power-to-weight ratio | 0.258 hp/kg |
| Power-to-weight | 257.9 hp/tonne |
| Specific power | 54.1 hp/L |
| Bore/stroke ratio | 0.92:1 (Undersquare) |
Engine specifications
| Engine type | V2, four-stroke |
|---|---|
| Displacement | 1,202 cc (73.35 cu in) |
| Power | 65 hp (47.4 kW) @ 6,000 rpm |
| Torque | 99.0 Nm (10.1 kgf-m or 73.0 ft.lbs) @ 3,500 rpm |
| Bore × stroke | 88.9 x 96.8 mm (3.5 x 3.8 inches) |
| Compression ratio | 10.0:1 |
| Cooling system | Air |
| Fuel system | Injection. Electronic Sequential Port Fuel Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Starter | Electric |
| Lubrication | Dry sump |
| Oil capacity | 2.80 L (2.96 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Belt (final drive) |
| Clutch | Multi-plate with diaphragm spring in oil bath |
Chassis and suspension
| Front suspension | Telescopic fork |
|---|---|
| Rear suspension | Twin shocks |
| Rake | 30.2° |
| Trail | 135 mm (5.3 inches) |
Brakes, wheels and tires
| Front brakes | Single disc. Dual-piston. Optional ABS. |
|---|---|
| Rear brakes | Single disc. Single-piston. Optional ABS. |
| Front tire | 130/90-B16 |
| Rear tire | 150/80-B16 |
| Wheels | Black, Split 9-Spoke Cast Aluminum with Machined Highlights |
Dimensions and weight
| Wet weight | 252 kg (555.6 lb) |
|---|---|
| Dry weight | 247 kg (544.5 lb) |
| Seat height | 665 mm (26.2 inches) |
| Alternate seat height | 711 mm (28.0 inches) If adjustable, highest setting. |
| Overall length | 2,164 mm (85.2 inches) |
| Wheelbase | 1,495 mm (58.9 inches) |
| Ground clearance | 110 mm (4.3 inches) |
Fuel and emissions
| Fuel capacity | 7.90 L (2.09 US gal) |
|---|---|
| Fuel consumption | 4.90 L/100 km (20.4 km/l or 48.00 mpg) |
| Greenhouse gases | 113.7 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Power/weight ratio | 0.2632 hp/kg |
|---|
Electrical and instruments
| Instruments | Handlebar-mounted electronic speedometer with odometer, time-of-day clock, dual tripmeter, low fuel warning light, low oil pressure light, engine diagnostics readout, LED indicator lights |
|---|---|
| Lights | High beam, neutral, low oil pressure, turn signals, engine diagnostics, low fuel warning, low battery, security system (optional) |
Other specifications
| Color options | Vivid Black, Midnight Crimson Red, Billiard Teal |
|---|---|
| Exhaust system | Black, staggered exhaust with slash-cut mufflers |
| Price as new | US$ 11250. MSRP depends on country, taxes, accessories, etc. |
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 Harley-Davidson models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Harley-Davidson information before relying on them. Visit the official Harley-Davidson website.