Aprilia RS4 125 reproduction evolves the construct of a sport bike for the young to most levels of technological refinement, recalling – both in its livery and in the importance of its lines – the planning of the super sport Aprilia RSV4 in its Superbike version. Careful aerodynamic studies allowed the surfaces to be reduced to a minimum while not penalising protection, leaving the frame and engine visible, which come back out as elementary components of the planning. The triple front headlight has by currently become a trademark part of all Aprilia sport product, while the compact tail is a true work of style art and it integrates the semiconductor diode rear light utterly, which is in a position to supply wonderful visibility even at nighttime. One detail which has created this model illustrious remains unchanged on the RS4 125: the exhaust, completely engineered into the lower half of the fairing, clearly inspired by the athletics bike.
The extremely flashy fairing takes on a black and red livery, with the front side fairing profiles created precious by the colors of the Italian flag so as to emphasize the brand's origins proudly. The passenger portion of the saddle will be replaced with the removable single seat shell, colour coded to the body, a touch of sportiness impressed by the Grand Prix single seater. The number “1” that adorns the tail fairing and also the high fairing could be a clear court to the enterprises of Aprilia riders.
Engine type Four stroke liquid cooled single cylinder with electronic injection
and 4 valves.
Timing system Double overhead camshaft - DOHC
Bore and stroke 58 X 47 mm
Engine capacity 124.8 cc
Compression ratio 12.5 ± 0.5:1
Ignition Electronic with CDI capacity discharge
Start up Electric
Lubrication Wet sump
Gearbox 6 Ratios, 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, 69/29
Final drive Chain, 60/13
Clutch Multiple discs, in oil bath
Frame Aluminium 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 calliper
Rear: 218 mm stainless steel disc and calliper with single 30 mm piston
Wheel rims In light alloy with 6 split spokes, with sealing profile for tubeless
tyres; front: 2.75 x 17"; rear: 3.50 x 17"
Tyres Front: 100/80 - 17", rear: 130/70 - 17"
Dimensions 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 litres (including 3.5 litre reserve)
Emissions compliance Euro 3