View Full Version : S4Rs

10-21-2005, 02:41 PM
From Ducati.com I guess the cat is officially out of the bag. ;)

The legendary Testastretta engine now powers the leading street fighter motorcycle. Designed with the most experienced riders in mind, who expect the best in terms of technology, performance and componentry, the Monster S4Rs sets a new standard in the category, benefiting from all the experience gained in the World Superbike Championship.

The L-twin Testastretta engine is a milestone on the historic journey of sports motorcycles. Testastretta technology allows a reduced angle between the intake and exhaust valves. The result is a clean, compact combustion chamber that is also highly efficient: the flat-crown pistons provide a perfectly smooth combustion environment and linear flame front. The special design of the heads, together with the cutting-edge electronic engine control system, guarantees optimal combustion throughout the rev range and makes for smooth, potent power delivery.

The Testastretta engine features a piston stroke of 63.5 mm and a bore of 100 mm: the short stroke limits average piston speed to allow increased RPM’s and improve overall reliability. An exclusive oil pump feeding system is built into the deep sump crankcase to ensure an even oil flow rate during the most dramatic acceleration and braking, or extreme cornering.

The chassis and running gear on this bike are unparalleled. The fully adjustable Ohlins suspension at both ends is complemented by 5 Y-shaped spoke rims that improve the rigidity/weight ratio compared to traditional wheels and enable a reduction of the unsprung weight for better handling. The 320 mm twin disc Brembo brakes on the front have radial-mounted callipers with four pistons and four pads. Radial-mounting guarantees a more rigid calliper-fork mount assembly, thus improving the efficiency of the brake system.

Several details – the silencer cover, exhaust heat plate, front mudguard and cam belt covers are produced in carbon fibre, contributing to the overall weight reduction and making this Monster look even more exclusive. Even a top performance bike such as this can be environmentally responsible, as the Monster S4Rs Testastretta complies with the stringent Euro 3 emission control standards.

95.7 kw - 130 hp @ 9500 rpm

Chris Koxlien
10-21-2005, 04:18 PM
Can't find the information on Ducati.com, where might it be? Very curious!!

Thanks in advance :D

10-21-2005, 05:39 PM
I couldn't find it either. Maybe, Ducati put the cat back in the bag.

10-21-2005, 07:11 PM
Always copy text and pics because some people erase them later.


10-21-2005, 09:47 PM
Thanks foggy

10-21-2005, 10:04 PM
S4Rs specs:

Frame Tubular steel trellis
Wheelbase 1440 mm / 56.7 in
Rake 24°
Front suspension Öhlins 43 mm upside-down fully adjustable fork with TiN surface treatment
Front wheel travel 130 mm / 5.1 in
Front brake 2 x 320 mm discs, 4-piston 4-pad radial caliper
Front wheel 3-spoke light alloy 3.50 x 17
Front tyre 120/70 ZR 17
Rear suspension Progressive linkage with fully adjustable Showa monoshock. Aluminium single-sided swingarm
Rear wheel travel 148 mm / 5.8 in
Rear brake 245 mm disc, 2-piston caliper
Rear wheel 5-spoke light alloy 5.50 x 17
Rear tyre 180/55 ZR 17
Fuel tank capacity 13.5 L / 3.6 US gal (includes 3 L / 0.8 US gal reserve)
Weight * 177 kg / 399 lbs
Seat height 800 mm / 31.5 in
Instruments Electronic panel: speedometer, rev counter, neutral light, oil pressure warning light, low fuel warning light, high beam indicator, turn signals, immobilizer system, LCD clock and oil temperature, LCD odometer and trip meter
Warranty 2 years unlimited mileage
Colour combinations:
(Tank-Frame-Wheels) (red with white stripe-red-black) (pearle white with red stripe-red-white) (black with grey stripe-matte black-black)
Versions Dual seat

* = The weight excludes battery, lubricants and, where applicable, cooling liquid.
Type black with grey stripe
Displacement 998 cc
Bore x Stroke 100 x 63.5 mm
Compression Ratio 11.4:1
Power* 95.7 kw - 130 hp @ 9500 rpm
Torque* 10.6 kgm @ 7500 rpm
Fuel injection Marelli electronic fuel injection, 50 mm throttle body
Exhaust 2 aluminium mufflers
Emissions Euro 3
Gearbox 6 speed
Ratios 1st 37/15, 2nd 30/17, 3rd 27/20, 4th 24/22, 5th 23/24, 6th 24/28
Primary drive Straight cut gears; ratio 1.84
Final drive Chain; Front sprocket 15; Rear sprocket 45
Clutch Dry multiplate with hydraulic control
Data calculated using an inertia dynamometer

10-21-2005, 10:06 PM
here's the link


10-22-2005, 07:02 AM
Notice that the specs hopefully aren't exact. 3spoke front and 5 spoke rear wheel, showa shock ohlins front? Some are saying this was posted by mistake but more likely just another teaser/leak to gauge public interest.

10-26-2005, 01:33 PM
the link doesn't work.

here are some pics of the italian dmc page: