Lupus Alpha

With more than 50 years of expertise in the mechanical field, Walter Tosto’s team created its first exclusive and priceless motorbike: Lupus Alpha. 

 

Bike details

Caliper brakes

pinz freno-1

Made in incoloy 800 h. Resistant to over 800 ° C, this material is usually used to produce reactors.

Fuel Tank

serbatoio-carburante

Made in titanium, a lightweight and corrosion resistant material but at the same time it results complex and difficult to weld. Unlike the traditional position, the fuel tank is placed under the saddle.

Chassis

telaio-2

Made in aluminium, handrcrafted.

Handlebar

manubrio

Made from a titanium condenser tube

Front fork

forcella-ant

Model GIRDER, with pantograph system and central shock absorber on brackets. The pantograph is a machine used for plates cutting.

Rear fork

forcella-post

Swingarm with double shock absorber, BITUBO horizontals with adjustable spring preload. Made in Chromium-vanadium

Rear wheel rim

ruota-anteriore

In aluminium machined from a single solid piece with T6 treatment.

Perimeter brake disk

dischi-freno-ant

Made in stainless steel

Cover

cover-serbatoio

Made in Carbon Fiber with embedded airbox

Exhaust manifold

marmitte

Handcrafted, based on the waste heat boiler design.

Tank cover grill

telaio-codino

The transparent tank cover grill is obtained by the internal part of the reactors (Johnson Vee-Wire)

Mono arm Licence Plate

portatarga

Made in steel and aluminum

 

Technical Details

ENGINE

Engine type 90 ° V Twin, 4 stroke, 4 valves, double starting
Cooling system Air and oil with independent cooling pump . Oil cooler with fan thermostatized
Engine size 1.380 CC
Cylinder bore 104 x 81,2 mm
Compression Ratio 10,5 : 1
Timing system diagram  (with 1 mm setting range) intake valve opens 19° P.P.M.S.intake valve closes 55° D.P.M.I. – dump valve opening 49° P.P.M.S. –
dump valve closing 12° D.P.M.S.
Maximum Power 71 kW (96 CV) , 6.500 rpm
Maximum Torque 120 Nm (12,3 kgm) 2.750 rpm
Fuel supply / Ignition Magneti Marelli IAW7SM Multipoint phased sequentialElectronic  injection” ;  D=52 mm throttle body “Ride by  Wire”, IWP 243 injectors, double lambda probe, integrated management of 3 engine mappings, traction control, cruise control
Starting Electronic
Spark plugs NGK LMAR8F, 2 per cylinder
Exhaust system Stainless steel,  D=76 three-way catalytic converter withdouble lambda probe
Certification Euro 3

 

TRANSMISSION

Transmission 6 speeds with final overdrive
Gear ratio values 1° 17/38 = 1 : 2,2352° 20/34 = 1 : 1,700 – 3° 23/31 = 1 : 1,348 – 4° 26/29 = 1 : 1,115 – 5° 31/30 = 1 : 0,968 – 6° 30/24 = 1 : 0,8
Primary drive With helical teeth, (ratio 26/35=1:1.346) doublecardan joint and fixed bevel gear seat (drive ratio10/36=1:3,6)
Clutch Single-disc with integrated anti-vibration buffer

 

CHASSIS

Chassis Steel tubing, closed double cradle with whit elastickinematicengine mounting system to isolate vibrations
Wheelbase 1685 mm
Trail 155 mm
Headstock angle 32°
Steering angle 38°
Front suspension fork mod. GIRDER  with central shock absorber on brackets
Front wheel travel 120 mm
Rear suspension Swingarm with double shock absorber, BITUBO horizontals with adjustable spring preload.
Rear wheel  travel
Front brake Dual D=415mm stainless steel floating disk, WT radial callipers with 6 opposed pistons; abs in standard equipment
Rear brake D=415mm stainless steel floating disk, WT radial callipers with 6 opposed pistons; abs in standard equipment
Wheels Aluminium machined from a single solid piece with T6 heat treatment
Front wheel rim 3,50” x 18”
Rear wheel rim 6,00” x 18”
Front tyre 130/70 R18”
Rear tyre 200/50 R18”

ELECTRONIC SYSTEM

Voltage 12V
Battery 12V-18 Ah
Alternator 12V-550 W

DIMENSIONS

Length 2430 mm
Width 810 mm
Height 1060 mm
Saddle height 740 mm
Minimum ground clearance 165 mm
Kerb weight 337 Kg
Fuel tank capacity 15 liters