Sachs Roadster 650 - 2001 Specifications and Reviews

The 2001 Sachs Roadster 650 is a lightweight naked bike powered by a torquey 644cc single-cylinder engine producing 50 horsepower. Ideal for beginner and intermediate riders, this affordable commuter excels in urban environments thanks to its manageable weight, low seat height, and responsive character. Its robust construction and straightforward carburetted engine make it reliable and easy to maintain.

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General information

CategoryNaked bike
Year2001
ModelSachs Roadster 650

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox5-speed
Valves per cylinder4
Fuel systemCarburettor
Bore x stroke100.0 x 82.0 mm (3.9 x 3.2 inches)
Torque56.00
Power50.00
Stroke4
Engine typeSingle cylinder
Capacity:644.00 ccm (39.30 cubic inches)

Physical measures and capacities

Wheelbase1,490 mm (58.7 inches)
Seat height760 mm (29.9 inches) If adjustable, lowest setting.
Dry weight165.0 kg (363.8 pounds)
 
 

Sachs Roadster 650 dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter320 mm (12.6 inches)
Front brakesSingle disc
Rear tyre dimensions160/60-ZR17
Front tyre dimensions120/70-ZR17
Rear suspension travel120 mm (4.7 inches)
Front suspension travel120 mm (4.7 inches)

Speed and acceleration

Power/weight ratio0.3030 HP/kg
Top speed170.0 km/h (105.6 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity20.00 litres (5.28 gallons)

Performance Profile & Rider Fit

105.6 mph
Top Speed

Best For

Track30%
City70%
Cornering65%
Daily Riding65%
Touring35%
Passenger30%

Rider Profile

Best ForSuits riders with some prior experience who want a torquey single-cylinder naked without overwhelming power delivery.
PurposeBest suited to everyday street riding, commuting, and weekend fun rather than long-distance travel or serious performance riding.
Rider FitA moderate seat height and light-for-its-class weight make it manageable for riders of average to shorter stature.
CharacterDelivers 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 ForNot a good fit for riders seeking high-speed touring, passenger comfort over distance, or off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2001 Sachs Roadster 650 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 760mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2001 Sachs Roadster 650, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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