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.
Despite being housed in Ducati’s trademark tubular trellis frame, the company’s designers did a stellar job of hiding the model’s slew of wiring and sensors so they could highlight the crown jewel of the bike: the engine.
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:ZDM1RB5T67B103225.
The odometer shows 9327 miles.
Maintenance:
In preparation for the listing, the seller had us perform a safety inspection, our service department installed a new horn, replaced rear brake pads, and repaired the license plate light. We also performed a hydraulic system flush and bled three master cylinders and replaced with DOT 4 brake fluid as required by the manual. The seller states “Belts were last done in 2019, as was a valve check, right around 7500 miles.”
Our service department notes the following on their condition report:
FINISHED CONDITION REPORT
Gas Tank Internal Condition: OK
Engine Oil Level: OK
Engine Oil Quality: OK
2T Oil Level: N/A
Coolant Level: OK
Coolant Quality: OK
Front Hydraulic Fluid Level:
Front Hydraulic Fluid Quality: New, < 1.5 % Moisture
Rear Hydraulic Fluid Level: OK
Rear Hydraulic Fluid Quality: New, < 1.5 % Moisture
Clutch Hydraulic Fluid Level: OK
Clutch Hydraulic Fluid Quality: New, < 1.5 % Moisture
Final Drive Condition: OK
Headlight High Beam: OK
Headlight Low Beam: OK
Passing Light: OK
Parking Light: OK
Turn Signals: OK
Tail Light: OK
Brake Light (Front Switch): OK
Brake Light (rear Switch): OK
Plate Light: OK
Horn: HORN INSTALLED
Kill Switch: OK
Brake Pad % Remaining Front: 80%
Brake Pad % Remaining Rear: 100%, New
Forks: OK
Shock/s: OK
Tire Date Code Front: 1810
Tire Date Code Rear: 4509
Tire % Remaining Front: 60%
Tire % Remaining Rear: 70%
Tire Press. Front: 36 PSI
Tire Press. Rear: 38 PSI
Battery Standing Voltage: 13.08V
Charging Voltage @ 4k RPM: 14.27V
Running Condition: RUNS GOOD
Test Ride Completed: Yes
Test Ride Distance: 6 miles, unit operates as designed
Notes:
BIKE RUNS
SPEEDY MOTO FRAME SAVERS
REAR FENDER ELIMINATOR
CRG BRAKE AND CLUTCH LEVERS
Modifications:
Speedy Moto Frame Sliders
Fender Eliminator
CRG Levers
Inside of the tank:
It is riding on Michelin Pilot Pure 2CT tires that have aged out with date codes of 4509 and 1810.
The sale includes two keys, red key card, and original owners manual.
Cosmetic Blemishes: please see the album up top for all known cosmetic blemishes. Here is a selection: Our service department notes very minor tank expansion, please see close up photo of the ignition.
Currently located in Santa Monica, California, this Aprilia is offered on a clean New Jersey title. Have any Monster S4RS stories or questions about this listing? Let us know in the “Comments” tab!
Additional Information
Location
Santa Monica, California
Year
2007
Make
Ducati
Model
Monster S4RS
Mileage
9327
VIN
ZDM1RB5T67B103225
Title
Clean
Title State/Country
New Jersey
Private Party/Dealership
Private Party
Additional Charges
No
Total Bids Placed: 42
Auction has ended.
Highest bidder was: j*******0
Bidder Name
Bidding Time
Bid
Auto
j*******0
January 24, 2025 12:09 pm PST
$7,750
a***6
January 24, 2025 12:07 pm PST
$7,650
t*******0
January 24, 2025 12:07 pm PST
$7,600
Auto This was automatically placed for a bidder with a higher proxy.
t*******0
January 24, 2025 12:05 pm PST
$7,500
a***6
January 24, 2025 12:04 pm PST
$7,400
j*******0
January 24, 2025 12:04 pm PST
$7,300
Auto This was automatically placed for a bidder with a higher proxy.
j*******0
January 24, 2025 12:03 pm PST
$7,200
Auto This was automatically placed for a bidder with a higher proxy.
a***6
January 24, 2025 12:03 pm PST
$7,100
j*******0
January 24, 2025 12:03 pm PST
$7,000
Reserve
t*******0
January 24, 2025 12:03 pm PST
$6,900
a***6
January 24, 2025 12:01 pm PST
$6,800
j*******0
January 24, 2025 12:01 pm PST
$6,799
Auto This was automatically placed for a bidder with a higher proxy.
j*******0
January 24, 2025 12:01 pm PST
$6,700
Auto This was automatically placed for a bidder with a higher proxy.
a***6
January 24, 2025 12:01 pm PST
$6,600
j*******0
January 24, 2025 12:00 pm PST
$6,500
t*******0
January 24, 2025 12:00 pm PST
$6,400
Auto This was automatically placed for a bidder with a higher proxy.
t*******0
January 24, 2025 11:59 am PST
$6,300
a***6
January 24, 2025 11:57 am PST
$6,200
j*******0
January 24, 2025 11:55 am PST
$6,100
m********i
January 24, 2025 11:31 am PST
$6,000
Auto This was automatically placed for a bidder with a higher proxy.
a***6
January 24, 2025 11:31 am PST
$5,978
m********i
January 24, 2025 8:07 am PST
$5,878
a***6
January 23, 2025 8:01 pm PST
$5,778
r******3
January 23, 2025 8:00 pm PST
$5,678
Auto This was automatically placed for a bidder with a higher proxy.
a***6
January 23, 2025 8:00 pm PST
$5,600
r******3
January 23, 2025 1:25 pm PST
$5,500
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z********s
January 23, 2025 1:25 pm PST
$5,400
r******3
January 22, 2025 8:33 am PST
$5,300
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z********s
January 22, 2025 8:33 am PST
$5,200
r******3
January 19, 2025 7:50 pm PST
$5,100
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m********i
January 19, 2025 7:50 pm PST
$5,000
r******3
January 18, 2025 11:49 pm PST
$4,100
m********i
January 18, 2025 11:49 pm PST
$4,000
Auto This was automatically placed for a bidder with a higher proxy.
m********i
January 18, 2025 1:21 pm PST
$3,900
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z********s
January 18, 2025 1:21 pm PST
$3,800
m********i
January 18, 2025 8:18 am PST
$3,700
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c***e
January 18, 2025 8:18 am PST
$3,600
m********i
January 18, 2025 8:18 am PST
$3,100
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c***e
January 18, 2025 8:18 am PST
$3,000
m********i
January 18, 2025 7:50 am PST
$2,100
t*****y
January 18, 2025 7:50 am PST
$2,000
Auto This was automatically placed for a bidder with a higher proxy.
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