Jul 23, 2016 04:34 PM
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A new and very potent version of Aprilia’s 65-degree V-4 that has been enlarged to 1, 077cc by enlarging the bore to 81mm from the original 78.
This engine delivers a massive claimed output of 175 hp at 11, 000 rpm, backed by an even more impressive 89.2 pound-feet of torque at 9, 000 rpm.
In addition to the larger bore, the V-4 has received a lighter crank assembly featuring Pankl connecting rods and larger valves(32mm inlet, 26mm exhaust), plus it breathes through 48mm throttle bodies with fixed geometry optimized for mid-range response. There is one injector per throttle body.
This excellent engine is harnessed in the same aluminum frame of the RSV4RF Superbike racer, but with further refined steering geometry and weight bias.
The steering rake has been reduced from 25.1° to 24.7° and the offset of the triple-clamps has been increased from 30 to 35mm.
The front wheel axle has remained in the same position in relation to the center of gravity of the bike, but the trail has been reduced from 107.4mm to 99.7mm. In addition, the swingarm has been lengthened by 4mm.
In addition, the Factory front brake uses twin 320mm rotors featuring special lightweight aluminum flanges and Brembo M432 monoblock radial-mount calipers.
The Factory has Pirelli Diablo Supercorsa radials as standard rubber, the front one in the customary 120/70-17 size, while the 6.00 x 17 rear wheel is shod with a 200/55-17 tire instead of the 190/55-17 of the Tuono RR.
On a gray and humid morning, a black and silver bike does not shine much, but the Aprilia Tuono V4 1100 Factory is a very well styled naked bike, with wheels and red accents that help the bike cut through the morning gloom. The major styling difference that separates the Tuono Factory from the Tuono RR is the streamlined seat borrowed from the RSV4 RR/RF.
