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 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)
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EV03
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SPR
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- 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.
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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:
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Front mudguard
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Ignition switch cover
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Left and right side panels for the airbox
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Rear chain guard protection
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Lower chain guard protection
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Left and right cover for inlet ducts
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SPR Kit includes:
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Rear workstand
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Grip covers
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Rear sprockets z37, z39
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MSRP: $22,695 |
