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Overkommelig Aprilia RSV4 racer

Carsten F. Olesen
12/11-2009 kl. 16:00

Ved direkte sammenligning af Max Biaggi’s dedikerede superbike racer og den nye Aprilia RSV4R, er slægtskabet umiskendeligt trods de enorme forskelle.

Aprilia’s race og produktionsafdeling har arbejdet tæt sammen, og gennem hele udviklingsforløbet vurderet samtlige aspekter for bedst muligt at tilgodese begge markeder.

V4 motorkonfigurationen blev valgt med det specifikke formål at vinde løb på banen, og alle tekniske beregninger og beslutninger er truffet i Aprilia’s race afdeling. Dette har resulteret i at løsninger som anvendes i racesammenhæng også findes på gadeversionen RSV4R.

”Ride by wire”, slipperkobling mv. er ikke et ukendt begreb på sportsligt orienterede motorcykler, og er nu normen på Aprilia’s topmodeller.

MagaCin har kørt RSV4 Factory verdenspremieren og ved kåringen af årets mc, og kan stå inde for at det er lykkedes producenten til fulde at implementere de sportslige elementer.

Den mere økonomisk overkommelige RSV4 slap som tidligere nævnt mindre heldigt gennem den nylige presselancering, som blev aflyst på grund af en række motorhaverier.

Ingen tvivl om at problemerne er løst når RSV4 R rammer det danske marked, efter den sidste hurdle med at finde en dansk importør til 2010 er overstået.

APRILIA RSV4 R: Technical Specifications

 

Engine type

Aprilia longitudinal 65° V-4 cylinder, 4-stroke, liquid cooling system, double overhead camshafts (DOHC), four valves per cylinder

Fuel

Unleaded fuel

Bore and stroke

78 x 52.3 mm

Total engine capacity

999.6 cc

Compression ratio

13:1 

Maximum power at crankshaft

180 CV (132.4 kW) at 12,500 rpm

Maximum torque at crankshaft

115 Nm at 10,000 rpm

Fuel system

Airbox with front dynamic air intakes.

4 Weber-Marelli 48-mm throttle bodies with 8 injectors and latest generation Ride-by-Wire engine management.

Choice of three different engine maps selectable by the rider with bike in motion: T (Track), S (Sport), R (Road)

Ignition

Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and “stick-coil”-type coils

Start up

Electric

Exhaust system

4 into 2 into 1 layout, single oxygen sensor, lateral single silencer with engine control unit-controlled butterfly valve and integrated trivalent catalytic converter (Euro 3)

Alternator

Flywheel mounted 420W alternator with rare earth magnets

Lubrication

Wet sump lubrication system with oil radiator and two oil pumps (lubrication and cooling)

Gearbox

6-speed cassette type gearbox

1st: 39/15 (2.6)

2nd: 33/16 (2,063)

3rd: 34/20 (1.7)

4th: 32/22 (1,455)

5th: 34/26 (1,308)

6th: 33/27 (1,222)

Clutch

Multiplate wet clutch with mechanical slipper system

Primary drive

Straight cut gears and integrated flexible coupling, drive ratio: 73/44 (1,659)

Secondary drive

Chain: Drive ratio: 40/16 (2.5) or 42/16 (2.625)

Chassis

Aluminium dual beam chassis with pressed and cast sheet elements.

Sachs steering damper

Front suspension

Upside-down Showa fork with 43 mm stanchions. Forged aluminium radial calliper mounting brackets. Completely adjustable spring preload and hydraulic compression and rebound damping. Wheel travel: 120 mm

Rear suspension

Twin sided aluminium swingarm; mixed low thickness and sheet casting technology.

Sachs piggy back monoshock with completely adjustable:  spring preload, wheelbase, hydraulic compression and rebound damping. APS progressive linkage. Wheel travel 130mm

Brakes

Front: Dual 320-mm diameter floating stainless steel disc with lightweight stainless steel rotor and aluminium flange with 6 pins. Brembo monobloc radial callipers with 4 34-mm opposite. Sintered pads. Radial pump and metal braided brake hose

Rear: 220-mm diameter disc; Brembo calliper with two 32 mm separate pistons. Sintered pads. Pump with integrated tank and metal braided hose

Wheel rims

Front: Aluminium alloy with 6 split spokes, 3.5”X17”

Rear: Aluminium alloy with 5 split spokes, 6”X17”

Tyres

Radial tubeless.

Front: 120/70 ZR 17

Rear: 190/55 ZR 17 (alternative: 190/50 ZR 17)

Dimensions

Max. length: 2040 mm

Max. width: 735 mm (at the handlebar)

Max. height: 1120 mm

Min. height from the ground: 130 mm

Saddle height: 845 mm

Centre to centre distance: 1420 mm

Trail: 105 mm

Steering angle:24.5°

Kerb weight

184 kg *

Tank

17 litres (4-litre reserve included)

*Kerb weight, without battery and fluids.

 

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