Aprilia RS 250 (1996-97)

The Aprilia RS 250 was a motorcycle produced in 1996-97, featuring a two-stroke, 90-degree V-twin cylinder engine with laminar suction and exhaust valve. The engine capacity was 249cc and the compression ratio was 12.00 (+/-0.7):1 with oil pump lubrication. The bike had a CDI ignition and a kick-start, with a maximum power of 52.9 kW / 72.5 hp at 11900 rpm and maximum torque of 40 Nm / 4.08 kgf-m / 29.5 lb/ft at 10750 rpm. The transmission included six speeds, direct drive, and a final drive chain with a ratio of 14:42 (1:3.0). The front suspension was an ~A40 mm inverted fork with adjustable rebound and compression damping, while the rear suspension featured a monoshock with a reservoir, adjustable extension, compression, and spring preloading. The front wheel had two ~A298 mm discs and four-piston calipers, while the rear wheel had a single ~A220 mm disc and a two-piston caliper. The dimensions of the bike were 1880 mm length, 690 mm width, 1080 mm height, and a wheelbase of 1370 mm, with a dry weight of 140 kg and a fuel capacity of 16.5 L / 4.4 US gal. Braking tests showed a stopping distance of 12.9 meters from 60 km/h and 36.8 meters from 100 km/h. The bike could reach a top speed of 209.5 km/h / 130.2 mph, as tested by Tuttomoto.

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Technical specifications:

Make Model: Aprilia RS 250

Year: 1996-97

Engine: Two stroke, 90 degrees V twin-cylinder, with laminar suction and exhaust valve. Separate lubrication with variable automatic mixer

Capacity: 249 cc / 15.2 cu in

Bore x Stroke: 56 x 50.6 mm

Cooling System: Liquid cooled

Compression Ratio: 12.00 (+/- 0.7): 1

Lubrication: Oil pump with separate circuit

Induction: 2 x ~A34 mm Mikuni 34 SS flat side carburetors

Fuel Type: Lead-free petrol, R.O.N. minimum 95

Engine Oil Recommendation: IP MAX 2T COMPETITION, or any high-quality oil meeting the ISO-L-ETC++ or API TC++ specifications

Air Filter: With polyurethane filter element

Ignition: CDI

Spark Plug: (tandard – NGK BR9ECM, racing – NGK BR10ECM, cold climate – NGK BR8ECM

Battery: 12v 4Ah

Starting: Kick

Max Power: 52.9 kW / 72.5 hp @ 11900 rpm

Max Power Rear Tyre: 47.2 kW / 64.3 hp @ 10400 rpm

Max Torque: 40 Nm / 4.08 kgf-m / 29.5 lb/ft @ 10750 rpm

Clutch: Oil bath, multiple-disc, with lever control on handlebars

Transmission: 6 Speed, direct drive

Gear box oil Recommendation: IP FC, SAE 75W-90, or any high-quality oil meeting the API GL-4 specification

Final Drive: Chain, sealed, jointless, DID 520 V6

Gear Change: With pedal (L), 1st low, other 5 high

Final Reduction: 14:42 (1:3.0)

Gear Ratio: 1st 11:27 (1:2.454) / 2nd 16:26 (1:1.625) / 3rd 17:21 (1:1.235) / 4th 22:23 (1:1.045) / 5th 24:22 (1:0.916) / 6th 25:21 (1:0.840)

Primary Reduction: 23:59 (1:2.565)

Front Suspension: ~A40 mm Inverted fork with adjustable rebound and compression damping.

Front Wheel Travel: 120 mm / 4.7 in

Rear Suspension: Magnesium alloy swingarm. Monoshock with resevoir, adjustable extension, compression and spring preloading.

Rear Wheel Travel: 130 mm / 5.1 in

Front Brakes: 2 x ~A298 mm discs, 4 piston calipers

Rear Brakes: Single ~A220 mm disc, 2 piston caliper

Front Wheel: 3.5 x 17 in.

Rear Wheel: 4.5 x 17 in.

Front Tyre: 120/60-17

Rear Tyre: 150/60-17

Rake: 25 degrees

Turning circle ~A: 4.09 m / 13.4 ft

Dimensions: Length: 1880 mm / 74.0 in Width: 690 mm / 27.2 in Height: 1080 mm / 42.5 in

Wheelbase: 1370 mm / 53.9 in

Seat Height: 810 mm / 31.9 in

Ground Clearance: 135 mm / 5.3 in

Dry Weight: 140 kg / 309 lbs

Wet Weight: 167 kg 368 lbs

Fuel Capacity: 16.5 L / 4.4 US gal

Reserve: 3.5 L / 0.9 US gal

Braking 60 km/h / 37 mph – 0: 12.9 m / 42.3 ft

Braking 100 km/h / 62 mph – 0: 36.8 m / 120.7 ft

Standing 1/4 Mile: 12.50 sec / 172.5 km/h / 107.2 mph

Top Speed: 209.5 km/h / 130.2 mph

Road Test: Tuttomoto Test