As Ducati’s superbikes evolved, so too did the Monster lineup. But by the middle-aughts, the Italian marque was facing increasingly fierce competition from fellow European manufacturers like Triumph and KTM. So in 2006, Ducati shoehorned the powertrain from its 998 superbike into the Monster. Two years later, Ducati one-upped itself, this time delivering what was essentially a naked version of its World Superbike Championship-winning 999 model.
Dubbed the S4RS, the naked was powered by Ducati’s Testastretta 998cc engine. The water-cooled narrow-head motor featured Marelli FI with competition derived 12 hole injectors and an auxiliary oil cooler. The race bred L Twin redlined at 10,500 rpm, putting down 130 hp at 9,500rpm and 77 ft-lbs of torque at 7,500rpm.
The 390lb (177kg) S4R S also boasted an array of competition grade componentry, much of it borrowed from the R-spec 999. 43mm inverted Öhlins forks with low-friction titanium nitride coating, Öhlins monoshock, aluminum single-sided swing-arm, four-pot Brembo P34 brakes with dual 320mm discs, and forged ten arm alloy Marchesini rims were all standard fare on the hopped-up naked.
This example is VIN: ZDM1RBST07B099060. The seller states “It was a passion project. I wanted to build a custom project bike for myself after seeing the paolo tesio bodywork kits on belissimoto website.“
The odometer shows 5,091 miles.
Maintenance:
The seller states: “Complete engine rebuild including all new gaskets, seals, desmo service, etc completed throughout 2024 The motor was taken out of the frame and completely tore down, refreshed, and refinished; including a complete Desmo Service, cam drive belt replacement. Custom braided stainless steel oil cooler lines were fabricated to pair up with a new Ducati Hypermotard 950SP oil cooler. Service records available showcasing the in depth work completed on motorcycle. The Ohlins front end was rebuilt including new dust and fork seals. The rear suspension was also completely rebuilt including a new seal head assembly from Ohlins and new rubber bumper.”
Modifications:
The original frame was heavily modified to make way for a custom Paolo Tesio T-X Design body kit. Gloss pearl and satin Paintwork was completed by Kustom Creations Inc. out of Madison Heights Michigan. Custom headlight and taillight also required and installed to be compatible with bodywork. A custom fabricated gloss carbon fiber front fender was also installed.
Brushed stainless steel exhaust system from MRT Engineered Performance. Billet KBike brushed dry slipper clutch paired with matching brushed billet EVR half open clutch cover.
Brushed billet AEM fully adjustable rearsets. 520 Chain conversion with Superlite front and rear sprockets and a brushed billet AEM carrier. Gloss carbon fiber vented front sprocket cover and short chain guard.
Rizoma billet reservoirs, Brembo RCS front brake master cylinder and a Brembo RCS 16 clutch master cylinder.
Brembo P4 484 Café front calipers with Brembo floating T-Drive rotors and a Brembo P2 Billet caliper with new Brembo rear rotor. Custom brake and clutch lines from Spiegler Performance.
Front triples were replaced with billet brushed IMA triples including new seal rings and bearings. Performance Technology adjustable clip-on style handlebars with new ProGrip grips.
Inside of the tank:
It is riding on Michelin Pilot Power tires which have aged out with date codes of 1606 and 3606.
The sale includes two keys.
Cosmetic Blemishes: The seller states there are no blemishes.
Currently located in Plymouth, Michigan, this Ducati is offered on a clean Michigan title. Do you have any Monster S4RS stories or questions about this listing? Let us know in the “Comments” tab!
