F4 SPR: THE CULT OF SPEED
The SPR is the fastest and most powerful F4 of the MV AGUSTA 2004 range. Created for the clientele that uses the motorcycle mainly on tracks, the SPR is a synthesis of a long tuning process to the Evolution engine.
The technical staff at MV AGUSTA designed a new cylinder head, new inlet ducts, and redesigned the combustion chamber. Also thanks to the new "MAHLE" pistons, stamped and with cooling oil jets, the SPR engine reaches a stratospheric threshold of the rev limiter at 13,900rpm.
A further and significant development involved the primary transmission, now with shorter ratios, equipped with a reinforced clutch. As a demonstration of its racing spirit, the SPR comes with a close ratio gearbox whilst having a long first gear with respect to the SENNA model; this solution in conjunction with the possibility to choose three different final transmission ratios, allows one to match the motorcycle's performance to any type of track. Those of whom will use the SPR on track may further increase performance by adopting the RG3 open exhaust, available as an option.
On a vehicle conceived for such an extreme use, much attention has been directed towards weight reduction, working not only on the engine but also on many components concerning the bodywork. In fact, numerous parts in carbon fiber are evident: the front mudguard, the ignition system cover, and the upper and lower chain-guard protections.
Apart from their inherent properties of light weight and mechanical resistance, these give greater product value to the aesthetics. Even the graphical choices underline the "racing" philosophy of this model. The SPR is available only in opaque black enriched by unique graphical details aimed at underlining the more impressive performance and sports characteristics.
The SPR is the fastest and most powerful F4 of the MV AGUSTA 2004 range. Created for the clientele that uses the motorcycle mainly on tracks, the SPR is a synthesis of a long tuning process to the Evolution engine.
The technical staff at MV AGUSTA designed a new cylinder head, new inlet ducts, and redesigned the combustion chamber. Also thanks to the new "MAHLE" pistons, stamped and with cooling oil jets, the SPR engine reaches a stratospheric threshold of the rev limiter at 13,900rpm.
A further and significant development involved the primary transmission, now with shorter ratios, equipped with a reinforced clutch. As a demonstration of its racing spirit, the SPR comes with a close ratio gearbox whilst having a long first gear with respect to the SENNA model; this solution in conjunction with the possibility to choose three different final transmission ratios, allows one to match the motorcycle's performance to any type of track. Those of whom will use the SPR on track may further increase performance by adopting the RG3 open exhaust, available as an option.
On a vehicle conceived for such an extreme use, much attention has been directed towards weight reduction, working not only on the engine but also on many components concerning the bodywork. In fact, numerous parts in carbon fiber are evident: the front mudguard, the ignition system cover, and the upper and lower chain-guard protections.
Apart from their inherent properties of light weight and mechanical resistance, these give greater product value to the aesthetics. Even the graphical choices underline the "racing" philosophy of this model. The SPR is available only in opaque black enriched by unique graphical details aimed at underlining the more impressive performance and sports characteristics.
The Chassis
The F4 SPR represents the maximum expression in performance terms of the MV AGUSTA 2004 range. For this reason, the motorcycle has been enriched in the chassis department by top quality accessories:
Marzocchi forks with 50mm legs embellished by a titanium nitride treatment
Sachs Racing shock absorber with double adjustment for compression
The Engine
The F4 SPR is equipped with the most powerful engine of the F4 range. Derived from the EV engine, it differs by the following:
New inlet and exhaust ducts (geometry and flux)
New inlet and exhaust profiles (greater lift and duration)
New inlet ducts hand polished
New timing buckets with new surface treatment
New springs for inlet valves
New Mahle Racing pistons
Increased compression ratio (13:1)
Reinforced clutch (discs with different trim and material)
Close ratio gearbox with new longer first gear
Three different final ratios homologated (15/37, 38, 39)
Rev limiter at 13,900rpm
The engine of the SPR, like the AGO and the S EVO3, gets the external painting of the following components:
Clutch cover painted in MV AGUSTA grey
Sprocket cover painted in MV AGUSTA grey
Phonic wheel cover painted in MV AGUSTA grey.
Design and equipment
The distinguishing features of the F4 SPR are:
Racing graphics
Grey leather seat with the F4 brand embroidered on the upper cushion
New design adjustable footrests
Wheels colored aluminum silver
SPR plate placed on the steering head
Instrumentation with stopwatch function inserted in the display, and rev counter with white background and SPR logo
KIT carbon fiber comprising:
Front mudguard
Ignition switch cover
Left and right side panels for the airbox
Rear chain guard protection
Lower chain guard protection
Left and right cover for inlet ducts
SPR Kit includes:
Rear workstand
Grip covers
Rear sprockets z37, z39
ENGINE
Type Four cylinder, 4 stroke, 16 valve
Timing system “D.O.H.C”, radial valve
Total displacement 45.7 cu. in.
Compression ratio 13:1
Starting Electric
Bore x stroke 2.9 in. x 1.7 in.
Max. horse power - r.p.m. (at the crankshaft) 107,3 Kw (146 HP) at 13000 - Lim. 13900 r.p.m. with RG3 + Eprom
Max. torque - r.p.m. 8,2 Kgm at 11000
Cooling system Liquid cooled, water-oil heat exchanger
Engine management system “Weber Marelli” 1,6 M ignition - injection integrated system; induction discharge electronic ignition,“Multipoint” electronic injection
Clutch Wet, multi - disc
Gear Box Cassette gearbox; six speed, constant mesh
Primary drive 47/81
Gear ratio Close ratio (n°3 final ratio equipment)
First gear: Speed* 14/37 84.9 mph 87.1 mph 89.4 mph at 13900 r.p.m.
Second gear: Speed* 16/33 108.7 mph 111.6 mph 114.6 mph at 13900 r.p.m.
Third gear: Speed* 15/27 124.6 mph 127.8 mph 131.3 mph at 13900 r.p.m.
Fourth gear: Speed* 19/30 142.0 mph 145.8 mph 149.7 mph at 13900 r.p.m.
Fifth gear: Speed* 23/33 156.3 mph 160.4 mph 164.8 mph at 13900 r.p.m.
Sixth gear: Speed* 18/24 168.2 mph 172.6 mph 177.6 mph at 13900 r.p.m.
Final velocity ratio 15x39 15 x 38 15x37
ELECTRICAL EQUIPMENT
Voltage 12 V
Alternator 650 W at 5000 r.p.m.
Battery 12 V - 9 Ah
DIMENSIONS AND WEIGHT
Wheelbase 55.04 in.
Overall lenght 79.01 in.
Overall width 26.97 in.
Saddle height 31.10 in.
Min. ground clearance 5.12 in.
Trail 3.87 in.
Dry weight 413.6 lb
Fuel tank capacity 4.6 Brit. gal. ( reserve fuel: 0.88 Brit. gal. )
PERFORMANCE
Maximum speed* 177.6 mph (maximum speed 182.2 mph with 15/36 final drive)
FRAME
Type CrMo Steel tubular trellis (TIG welded)
Rear swing arm pivot plates: material Aluminium alloy
FRONT SUSPENSION
Type “UPSIDE - DOWN” telescopic hydraulic fork with rebound-compression damping and spring preload adjustment
Rod dia. 1.97 in. with Titanium Nitride anti-friction treatment
Travel on leg axis 4.65 in.
REAR SUSPENSION
Type Progressive, single shock absorber with rebound and compression (High speed / Low speed) damping and spring preload
Single sided swing arm: materiale Aluminium alloy
Wheel travel 4.72 in.
BRAKE
Front brake Double steel floating disc
Flange: material Aluminium
disc dia.; caliper piston number and dia. 12.2 in.; 6 with 0.89 in. dia.; 1.00 in. dia.; 1.19 in. dia.
Rear brake Single steel disc
disc dia.; caliper piston number and dia. 8.27 in.; 4 with 1.00 in. dia.
RIM
Front: Material / size Forged aluminium alloy 3,50 ” x 17 ”
Rear: Material / size Forged aluminium alloy 5,50 ” x 17 ”
TYRES
Front 120/65 - ZR 17 (56 W)
Rear 180/55 - ZR 17 (73 W) or 190/50 - ZR 17 (73 W)
FAIRING
Material Thermoplastic and carbon fiber
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