2011 Aprilia RS4 125 Comes to America

Google+ Pinterest LinkedIn Tumblr

American youths can rejoice to the news that the 2011 Aprilia RS4 125 will be coming to the United States for 2011. The four-stroke 125cc beginner bike may only have 15hp, but it has been done-up to look like the RSV4, and that’s what matters right? Replacing the RS125, the RS4 125 is supposedly just a Derbi in sheep’s clothing, but considering both brands come from the Piaggio mother ship, we fail to see why that would be an issue to a 16-year-old who has somehow managed to convince his/her parents to buy them a motorcycle. The liquid-cooled, four-valve, DOHC motor comes with electric fuel-injection, and is mated to a six-speed gearbox. Weight is 264 lbs with a full 3.8 gallon tank of gas. Technical Specifications after the jump.

2011 Aprilia RS4 125 Technical Specifications:

Engine type: Four stroke liquid cooled single cylinder with electronic injection and 4 valves. Euro 3 homologated
Bore and stroke: 58 X 47 mm
Engine capacity: 124.8 cc
Timing system: Double overhead camshaft – DOHC
Compression ratio: 12.5 ± 0.5:1
ECU: Magneti Marelli MIU G3 32 MM DIAM.
Ignition: Electronic with CDI capacity discharge
Starting: Electric
Alternator: 13V – 235W
Lubrication: Wet sump

Gearbox: 6 speed.
1st 11/33 (0.33) 2nd 15/30 (0.50) 3rd 18/27 (0.67) 4th 20/24 (0.83) 5th 25/27 (0.92) 6th 23/22 (1.05)
Primary drive Gears: 73/24 (3.04)
Final drive Chain: 49/14 (3.50)
Clutch: Multiple discs, in oil bath

Frame: Aluminum perimeter frame
Front suspension: 41 mm upside down fork, wheel excursion 110 mm
Rear suspension: Asymmetric swingarm with monoshock, wheel travel 130 mm
Brakes: Front: 300 mm stainless steel disc with radial 4 piston caliper; Rear: 218 mm stainless steel disc and caliper with single 25 mm piston
Wheel rims: light alloy with 6 split spokes, with sealing profile for tubeless tyres; Front: 2.75 x 17″; Rear: 3.50 x 17″
Tyres: Front: 110/80 – 17″, rear: 130/70 – 17″

Max. Length: 1953 mm
Max width: 740 mm
Max height at top fairing: 1,138 mm
Saddle height: 820 mm
Wheelbase: 1,350 mm
Fuel tank capacity: 14.5 liters (including 3.5 liter reserve)

Source: Aprilia

Jensen Beeler

Despite his best efforts, Jensen is called one of the most influential bloggers in the motorcycle industry, and sometimes consults for motorcycle companies, whether they've solicited his expertise or not.