Honda SLR 650 - 1999 Specifications and Reviews

The 1999 Honda SLR 650 is a capable single-cylinder enduro designed for adventure riders seeking lightweight off-road performance. Known for its reliable liquid-cooled engine and manageable power delivery, it excels on mixed terrain and challenging trails. This versatile machine suits riders wanting genuine adventure capability without overwhelming complexity.

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General information

CategoryEnduro / offroad
Year1999
ModelHonda SLR 650

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox5-speed
Cooling systemLiquid
StarterElectric
Valves per cylinder4
Bore x stroke100.0 x 82.0 mm (3.9 x 3.2 inches)
Compression8.3:1
Torque51.00
Power34.00
Stroke4
Engine typeSingle cylinder
Capacity:644.00 ccm (39.30 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,440 mm (56.7 inches)
Seat height845 mm (33.3 inches) If adjustable, lowest setting.
Front percentage of weight47.3
Weight incl. oil, gas, etc180.0 kg (396.8 pounds)

Honda SLR 650 dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter276 mm (10.9 inches)
Front brakesSingle disc
Rear tyre dimensions120/90-17
Front tyre dimensions100/90-19
Rear suspension travel170 mm (6.7 inches)
Front suspension travel190 mm (7.5 inches)

Speed and acceleration

60-140 km/h (37-87 mph), highest gear13.400 seconds
0-100 km/h (0-62 mph)7.000 seconds
Top speed144.0 km/h (89.5 mph)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel consumption pr. 10 km (6.2 miles)0.59 litres (0.16 gallons)
Fuel capacity16.00 litres (4.23 gallons)

Performance Profile & Rider Fit

34 hp
Peak Power
7.5s
0-60 mph
89.5 mph
Top Speed

Best For

Track20%
City65%
Cornering55%
Daily Riding60%
Touring40%
Passenger30%

Rider Profile

Best ForThis bike suits riders from beginner to intermediate level thanks to its modest power and forgiving, single-cylinder character.
PurposeBest thought of as a street-oriented big single, blending light off-road styling with practical, everyday road use rather than serious touring or racing.
Rider FitA tallish 845mm seat height combined with a light 180kg mass makes it manageable for most adult riders, though shorter riders may find tip-toe stops at stand-still.
CharacterIt has a relaxed, torquey single-cylinder feel that rewards smooth, low-effort riding rather than outright speed.
Not Ideal ForIt is not for riders wanting high-speed highway cruising, serious two-up touring, or genuine technical off-road capability.

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

Rider Fit Visualizer

1999 Honda SLR 650 Rider Ergonomics Assessment

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Feet:

At 845mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 1999 Honda SLR 650, with a cramped knee angle of around 75 degrees and an upright 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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