The S4Rs has a 130 HP/77 Ft Lbs. torque 998cc motor that was lifted right out of their world class 999s superbike but it is not just another sports bike, nor a mere superbike without a fairing. It could be called “super-naked”, packed with parts and solutions taken directly from the world of motorcycle racing (brakes are from the 999R, it has Marchesini alloy wheels and Ohlins 43mm forks identical to the 999R's.).

​The chassis and running gear on this bike are unparalleled. The fully adjustable Öhlins 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 calipers with four pistons and four pads. Radial-mounting guarantees a more rigid caliper-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.

A bit of history: The "Cologne Motor Show", autumn 1992 - a mysterious Ducati prototype stands out among the new innovations on show. On display is the Monster 900, a model destined to take its rightful place in the history of international motorcycling.

​Ducati's Monster lineup is the highest production motorcycle in the history of Ducati, with over 250,000 produced to date. In 2007 Ducati's worldwide production for the S4Rs was 1375 units and was built specifically to compete in the Naked class racing series in Italy.

​​S4Rs Reviews with specifications: 
​Motorcyclist:

http://www.motorcyclistonline.com/road-test-2007-ducati-monster-s4rs
 
Top Speed: 
http://www.topspeed.com/motorcycles/motorcycle-reviews/ducati/2007-ducati-monster-s4r-s-testastretta-ar18095.html
Sport Rider: 
http://www.sportrider.com/2007-ducati-monster-s4rs-testastretta
MotoUSA: 
http://www.motorcycle-usa.com/2007/10/article/2007-ducati-monster-s4rs-comparison/

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Ducati 2007 Monster S4Rs  ~  1 of 1375 Produced worldwide