In an age when sportbikes ruled, the Monster gave buyers a taste of something fresh even though it utilized the frame from a 888 and the air-cooled SOHC engine from the 900SS. Between its torquey engine and cafe racer looks, it was an overnight sensation – the Monster was so popular that it accounted for 42% of Ducati’s sales between 1993 and 2000.
By 2000, the fuel injected (or as Ducati called it, ie for iniezione elettronica) motor was producing 78 horsepower and 53 foot-pounds of torque — more than enough grunt to move its 408-pound heft.
As Bike Magazine put in its 1993 review: “This is no retro. A Zephyr is a styling gimmick, a bare bones bike tainted by nostalgia. Nor is the Monster a no-compromise sportster (that only comes into its own above 130 mph clothed in expensive plastic). No, the Monster is a modern, raunchy street bike, pure and simple. There’s no pretense, no waste and no messing. It’s pure, concentrated essence of motorcycling fun and it’s got bags of character without any surplus baggage.”
This example is VIN: ZDM1RA4N4YB003090. The seller acquired this bike three years ago.
During his ownership, the seller has covered “less than 1,500 miles. I ride it like 3-4 times per year.” True mileage is unknown – the odometer shows 1,082 miles after it was installed and the seller estimates that the bike has approximately 24k on it in total.
“This bike is basically my street version of a Radical Ducati. It was meant for day rides around the Tahoe National Forrest area. It has not been ridden much since I pretty much gave up on street riding right when I finished building this one. I’m hoping to find a nice home for her where she will be appreciated and loved. This motorcycle is a piece of history with tastefully done modifications to bring it up to modern performance expectations. Weighing in at 354 lbs., she is a riot!”
“I bought this bike in San Rafael from a Ducati specialist that sells used monsters as a side hustle. It needed basic maintenance but overall it was in really good condition. I’m getting older and barely ride on street. I have other track bikes, so this one doesn’t get ridden much. I need space for other builds and can use the extra cash..”
Maintenance:
“This bike was recently customized and completely refreshed, it runs like a brand new motorcycle. Valve adjustment, spark plugs and new timing belts were done in October 2025. It has approximately 24,000 miles. It comes with some spare/extra parts, receipts and one rear stand. All the custom work was done by me and the fuel mapping was done at a local Ducati tuning shop (receipts available). I have receipts for most of the parts purchased, the valve check/adjustment was recently done by me..”
In preparation for the listing, the seller had us perform a safety inspection, flush the hydraulic fluids, and clean/lube/adjust the chain. Our service department notes the following on their condition report:
Gas Tank Internal Condition: OK
Engine Oil Level: OK
Engine Oil Quality: OK
2T Oil Level: N/A
Coolant Level: N/A
Coolant Quality: N/A
Front Hydraulic Fluid Level: OK
Front Hydraulic Fluid Quality: FAIL MORE THAN 3% H2O
Rear Hydraulic Fluid Level: OK
Rear Hydraulic Fluid Quality: NEW
Clutch Hydraulic Fluid Level: OK
Clutch Hydraulic Fluid Quality: NEW
Final Drive Condition: CLEANED AND LUBED
Headlight High Beam: PASS
Headlight Low Beam: PASS
Passing Light: N/A
Parking Light: N/A
Turn Signals: N/A
Tail Light: N/A
Brake Light (Front Switch): PASS
Brake Light (Rear Switch): N/A
Plate Light: N/A
Horn: PASS
Kill Switch: PASS
Brake Pad % Remaining Front: 95
Brake Pad % Remaining Rear: 90
Forks: BOTH LEAKING
Shock/s: WEEP
Tire Date Code Front: 2921
Tire Date Code Rear: 3721
Tire % Remaining Front: 85
Tire % Remaining Rear: 90
Tire Press. Front: 22.5
Tire Press. Rear: 25.0
Battery Standing Voltage: 12.28v
Charging Voltage @ 4k RPM: 13.9v
Running Condition: RUNS
Test Ride Completed: NO
Test Ride Distance: N/A
Notes:
MODIFIED FRAME
NON STOCK DUCATI TANK
AFTERMARKET HEADLIGHT
AFTERMARKET GAUGES
AFTERMARKET TAIL SECTION AND TAILLIGHT
CUSTOM SIDE STAND
AFTERMARKET EXHAUST
CLUTCH LEVER GUARD
OHLINS SHOCK
IGNITION SWITCH SUSPECTED CONNECTOR CORROSION
NO CLUTCH SAFETY SWITCH.
TANK WEEPING AT PUMP PLATE
FORKS LEAKING
RECOMMENDED REPAIRS:
ADDRESS FUEL LEAK
REBUILD FRONT FORKS
Modifications:
-New Andreani fork inserts w/Ohlins oil. Sprung for 180 lbs. rider
-New EBC Front and Rear brake rotors and brake pads with all new fluids
-Steel braided brake and clutch lines
-Titanium hardware (black) on all rotors and forks
-Ducati SBK front fender
-New Ohlins shock by Warhorse SBK. Sprung for a 180 lbs. rider
-Oberon clutch slave cylinder
-Perforated clutch cover
-Lightweight Flywheel
-New 520 chain and Superlite sprockets
-Safety wired front rotors, oil drain plug and oil filter
-Adjustable short levers
-Custom steering damper
-UFO number plate with KTM headlight
-Custom Ducati SBK fuel tank
-Custom fabricated subframe w/Hot Bodies CBR 1000 SBK tail section
-New Shorai lithium battery w/trickle charger
-New K&N Cone Air filters
-Custom fitted carbon fiber belly pan
-Crank breather
-Custom stainless steel 2 into 1 exhaust with slip-on
-Custom carbon fiber rearsets with optional GP shift lever (installed)
-Stainless steel hardware throughout
-Steel engine guard at the counter sprocket/engine area in case the chain breaks to protect the case from getting cracked by chain slap
-Custom stainless steel kickstand
Inside of the tank:
It is riding on Pirelli Rosso Corsa II tires with date codes of 2921 and 3721.
The sale includes two keys.
Cosmetic Blemishes: please see the album in the “Photos” tab for all known cosmetic blemishes. Here is a selection:
“Some minor frame blemishes, Fuel tank, fender and tail are rattle can painted semi-gloss black (dupli-color) so it can use a professional paint job. Cosmetically it is in very good shape overall.”
Currently located in Panorama City, California, (please make an appointment for an inspection) this Ducati is offered on a clean California title with registration current through July 2026.
Have any Monster 900 stories or questions about this listing? Let us know in the “Comments” tab!
