Naked Motorcycles
2006Sachs Roadster 650
28 fields on record
The 2006 Sachs Roadster 650 is a lightweight naked bike powered by a 644cc single-cylinder engine, ideal for riders seeking an accessible and manageable middleweight platform. Known for its straightforward engineering and air-cooled simplicity, it delivers practical everyday performance with genuine character. The 740mm seat height and responsive handling make it particularly suited to riders valuing comfort and control over raw power.
- Capacity
- 644.0 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Dry weight
- 154.0 kg
- Seat height
- 740 mm
- Power
- 70.8 HP (52.1 kW)
What’s new for the 2006 Sachs Roadster 650
vs the 2005| Spec | 2005 | 2006 |
|---|---|---|
| Power | 50.0 HP (36.8 kW) | 70.8 HP (52.1 kW) |
| Torque | 56.0 Nm (5.7 kgf-m or 41.3 ft.lbs) | not listed |
| Wet weight | — | 169.0 kg (372.6 pounds) |
| Gearbox | — | 5-speed |
| Front brakes | — | Single disc |
| Rear brakes | — | Single disc |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Best suited to everyday street riding, commuting, and weekend fun rather than long-distance travel or serious performance riding.
- Built for
- Delivers the characterful, thumping feel typical of a big single-cylinder engine, with straightforward carbureted mechanics and an air-cooled simplicity that appeals to riders who like unpretentious machines.
- Not ideal for
- Not a good fit for riders seeking high-speed touring, passenger comfort over distance, or off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 644.0 ccm
- Power
- 70.8 HP (52.1 kW)
- Engine type
- Single
- Power/weight ratio
- 0.4597 HP/kg (dry)
- Bore x stroke
- 100.0 x 82.0 mm
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1490 mm
- Seat height
- 740 mm
- Dry weight
- 154.0 kg
- Wet weight
- 169.0 kg
- Fuel capacity
- 17.00 litres
- Reserve fuel capacity
- 3.00 litres
Chassis & suspension
- Front wheel travel
- 120 mm
- Rear wheel travel
- 120 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 160/60-ZR17
Other
- Color options
- Blue
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2001 | 2003 | 2004 | 2006 | 2007 |
|---|---|---|---|---|---|
| Capacity | 644 cc | 650 cc | 650 cc | 644 cc | 644 cc |
| Dry weight | 165 kg | 154 kg | 154 kg | 154 kg | 154 kg |
| Seat height | 760 mm | 740 mm | 740 mm | 740 mm | 732 mm |
| Fuel capacity | 20 L | 17 L | 17 L | 17 L | 17 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Sachs Roadster 650?
The 2006 Sachs Roadster 650 has a Capacity of 644.0 ccm (39.30 cubic inches).
What engine power does the Sachs Roadster 650 have?
The 2006 Sachs Roadster 650 has a Power of 70.8 HP (52.1 kW).
How many gears does the Sachs Roadster 650 have?
The 2006 Sachs Roadster 650 has a Gearbox of 5-speed.
How much does the Sachs Roadster 650 weigh?
The 2006 Sachs Roadster 650 has a Dry weight of 154.0 kg (339.5 pounds).
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