Sportbikes
1999Aprilia RS 50
35 fields on record
The 1999 Aprilia RS 50 is a classic moped-class sports bike from Aprilia's racing-inspired range. Its liquid-cooled 49.7cc two-stroke single drives a six-speed manual gearbox. An 810 mm seat and a 12.2-litre tank made it a favourite with young riders in the late 1990s.
- Capacity
- 49.7 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 90.5 kg
- Seat height
- 810 mm
- Power
- 5.4 HP (4.0 kW)
Other years
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built for nimble, playful sport riding on twisty roads and around town rather than outright speed, thanks to its tiny two-stroke engine and sportbike ergonomics.
- Built for
- It has the look and handling feel of a proper sportbike shrunk down, with sharp steering and a lightweight chassis that rewards revving the small two-stroke engine hard.
- Not ideal for
- It's not the right choice for anyone needing real highway speed, long-distance comfort, or the ability to comfortably carry a passenger.
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
- 49.7 ccm
- Power
- 5.4 HP (4.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.0597 HP/kg (dry)
- Bore x stroke
- 40.3 x 39.0 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- Electronic, capacitor discharge
- Lubrication system
- Automatic mixer
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate wet clutch with slipper system
Dimensions & weight
- Wheelbase
- 1280 mm
- Overall length
- 1875 mm
- Overall width
- 640 mm
- Overall height
- 1090 mm
- Seat height
- 810 mm
- Dry weight
- 90.5 kg
- Wet weight
- 132.0 kg
- Fuel capacity
- 12.20 litres
Chassis & suspension
- Frame
- Sloping twin spar in cast aluminium with thin walled structural shell and cross rib reinforcement
- Front suspension
- Aprilia 35 mm central pin hydraulic telescopic fork.
- Rear suspension
- Double member swinging arm in high strength steel with hydraulic monoshock,.
- Front wheel travel
- 110 mm
- Rear wheel travel
- 110 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 280 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 90/80-17
- Rear tyre
- 110/80-17
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 | 1998 | 1999 | 2004 | 2010 | 2015 | 2021 |
|---|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 91 kg | 91 kg | 89 kg | 89 kg | 89 kg | 89 kg |
| Seat height | 810 mm | 810 mm | 810 mm | 815 mm | 820 mm | 820 mm |
| Fuel capacity | 12.2 L | 12.2 L | 13 L | 13 L | 13 L | 14.5 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 Aprilia RS 50?
The 1999 Aprilia RS 50 has a Capacity of 49.7 ccm (3.03 cubic inches).
What engine power does the Aprilia RS 50 have?
The 1999 Aprilia RS 50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Aprilia RS 50 have?
The 1999 Aprilia RS 50 has a Gearbox of 6-speed.
How much does the Aprilia RS 50 weigh?
The 1999 Aprilia RS 50 has a Dry weight of 90.5 kg (199.5 pounds).
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