MOTO4FUN

Engine
Type Four-stroke V 90 twin
Cooling system Air cooled
Displacement 935,6 cc
Bore and stroke 95 x 66 mm
Compression ratio 10
Timing system 2 valves per cylinder commanded by light alloy cam acting on rocker arm and mechanical tappets
Timing diagram: Intake valve opening 24 ° before upper TDC.
Intake valve closing 52 ° after lower TDC.
Exhaust valve opening 54 ° before lower TDC.
Exhaust valve closing 22 ° after upper TDC.
Maximum power 55 KW at 7,200 rpm
Maximum torque 78 Nm at 6,000 rpm
Fuel system Multipoint sequential electronic injection, Magneti Marelli IAW phased, alfa-n system; 2 Ø 40 mm throttle bodies with Weber IW 031 injectors
Starting system Electric
Ignition Digital electronic with Magneti Marelli IAW 15RC inductive discharge
Exhaust 2 stainless steel pipes connected to 1 expansion chamber connected to two chromed steel silencers; 3-way catalyser with Lambda probe.
Homologation Euro 3
Transmission
Gearbox 6 speed – constantly engaged cogs with integrated flexible couplings
Gear ratios 1st 17/38 = 1 : 2.235
2nd 20/34 = 1 : 1.7
3rd 23/31 = 1 : 1.348
4th 26/29 = 1 : 1.115
5th 31/30 = 1 : 0.968
6th 29/25 = 1 : 0.862
Lubrification Helicoidal gears, ratio 24/35 = 1 : 1.458
Primary drive Shaft drive, ratio 12/44 = 1 : 3.667
Secondary drive Shaft drive
ratio: 8/33=1 : 4,125
Clutch Dry mechanically operated twin plate
Chassis
Frame Very rigid high tensile steel tubular twin cradle
Wheelbase 1.570 mm
Rake 28°
Front suspension Marzocchi Ø 45 mm adjustable front forks
Front wheel travel 140 mm
Rear suspension Single swingarm with progressive action – single rebound adjustable shock absorber with easy to operate pre-load setting knob
Rear wheel travel 120 mm
Front brake Twin floating 320 mm stainless steel discs, floating Brembo calipers with 2 parallel pistons.
Rear brake Single 282 mm fixed stainless steel disc, floating Brembo calipers with 2 parallel pistons.
Wheels:
Spoked aluminium alloy (tubeless)

Front wheel: 3.5” x 18”
Rear wheel: 5.5” x 17”
Tyres Front tyre: 120/70 ZR 18 M/C (59W) TL Roadtec Z6
Rear tyre: 180/55 ZR 17 M/C (73W) TL Roadtec Z6
Electrical equipment
Voltage 12 V
Battery 12 V - 18 Amp/h
Alternator 12 V - 350 Watt
Dimensions
Length 2.270 mm
Width 890 mm
Height 1.310 mm
Seat height 780 mm
Ground clearance 150 mm
Handlebar height 1.050 mm
Dry weight 224 kg
Fuel tank capacity 19 litres
Reserve 4 litres