IllustrationMOTORCYCLE PLASTIC GAS TANK HAS EXPANDED. THE FAILURE IS DUE TO INCOMPATIBILITY OF MATERIALS AND FUEL ADDITIVES. COULD RESULT IN FUEL LEAKAGE, CONTROL INTERFERENCE, POSSIBLE CRASH. *TR
2007 Ducati Monster S4RS
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Monster S4RS years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
250–25K
225–50K
050–75K
075–100K
0100–150K
0150K+
27 reports with mileage · 2 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Fuel System, Gasoline. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports1 fire reports0 injury reports
What owners actually said
29 reportsFUEL TANK HAS INCREASED IN SIZE AND SHAPE IS DEFORMED. TANK SUPPORTS TO FRAME OF MOTORCYCLE ARE PUSHED AWAY FROM FRAME. TANK IS IN CONTACT WITH STEERING HEAD OF MOTORCYCLE. LATCH TO REMOVE TANK IS JAMMED INTO IGNITION SWITCH. THESE ISSUES ARE A SAFETY CONCERN IF LATCH OR TANK SUPPORTS FAIL. LATCH IS LOCATED IN FRONT OF TANK.…
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FUEL TANK HAS INCREASED IN SIZE AND SHAPE IS DEFORMED. TANK SUPPORTS TO FRAME OF MOTORCYCLE ARE PUSHED AWAY FROM FRAME. TANK IS IN CONTACT WITH STEERING HEAD OF MOTORCYCLE. LATCH TO REMOVE TANK IS JAMMED INTO IGNITION SWITCH. THESE ISSUES ARE A SAFETY CONCERN IF LATCH OR TANK SUPPORTS FAIL. LATCH IS LOCATED IN FRONT OF TANK. TANK COULD BE LIFTED UP AND BACK WHILE RIDING IF LATCH FAILS. TANK IS MADE OF PLASTIC MATERIAL. SIZE INCREASE AND DEFORMATION APPEARS TO BE CAUSED BY ABSORPTION OF WATER/ETHANOL DUE TO PHASE SEPARATION OF GASOLINE AND ETHANOL. REPLACEMENT TANKS FROM DUCATI ARE MADE OF SAME MATERIAL. THIS WILL CONTINUE TO OCCUR UNLESS NEW TANKS ARE LINED OR MADE OF DIFFERENT MATERIALS. *TR
MY 2007 DUCATI S4RS MOTORCYCLE FUEL TANK SWELLED TO THE POINT IT WAS NOT RESTING SECURELY ON THE FRAME, THE BARS WOULD CONTACT IT BEFORE FULL LEFT OR RIGHT TURNING MOVEMENT, IT PUSHED AGAINST THE IGNITION SWITCH CAUSING THE FUEL TANK LATCH TO NOT ENGAGE, AND THE PAINT CRACKED OFF. DUCATI UNOFFICIALLY CLAIMS (LEARNED FROM MY DEA…
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MY 2007 DUCATI S4RS MOTORCYCLE FUEL TANK SWELLED TO THE POINT IT WAS NOT RESTING SECURELY ON THE FRAME, THE BARS WOULD CONTACT IT BEFORE FULL LEFT OR RIGHT TURNING MOVEMENT, IT PUSHED AGAINST THE IGNITION SWITCH CAUSING THE FUEL TANK LATCH TO NOT ENGAGE, AND THE PAINT CRACKED OFF. DUCATI UNOFFICIALLY CLAIMS (LEARNED FROM MY DEALER) THAT ETHANOL IN AMERICAN GAS IS CAUSING THE PROBLEM. I AM WORRIED ABOUT THE POTENTIAL FOR FUEL SEEPAGE AND FIRE ALONG WITH THE TANK BECOMING DISLODGED WHILE RIDING. *TR
FUEL TANK IS PLASTIC AND APPEARS TO HAVE A REACTION WITH THE ENVIRONMENT THAT IS CAUSING THE MATERIAL TO SWELL IN ALL DIMENSIONS. THIS CAUSES THE TANK MOUNTING TO BECOME HIGHLY STRESSED, UNSEATED AND UNSTABLE. THE TANK IS INTERFERING WITH THE STEERING. *TR
DUCATI MOTORCYCLE GAS TANK EXPANDING. EXPANDED SO MUCH THAT IT WAS NOT SITTING PROPERLY ON MOTORCYCLE FRAME, WAS UNABLE TO UNLATCH OR RELATCH TO BIKE TO GAIN ACCESS TO BATTERY. HAD TANK REPLACE LAST YEAR UNDER WARRANTY BY DUCATI. BUT THE NEW TANK IS NOW EXPANDING AND IT HAS BEEN 1 YEAR. FEEL THIS WILL BE AN ONGOING PROBLEM..…
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DUCATI MOTORCYCLE GAS TANK EXPANDING. EXPANDED SO MUCH THAT IT WAS NOT SITTING PROPERLY ON MOTORCYCLE FRAME, WAS UNABLE TO UNLATCH OR RELATCH TO BIKE TO GAIN ACCESS TO BATTERY. HAD TANK REPLACE LAST YEAR UNDER WARRANTY BY DUCATI. BUT THE NEW TANK IS NOW EXPANDING AND IT HAS BEEN 1 YEAR. FEEL THIS WILL BE AN ONGOING PROBLEM...GAS TANK IS PLASTIC. OLD TANKS WERE METAL, NEVER EXPERIENCED THIS BEFORE. SEEMS TO BE RELATED TO ETHANOL IN THE GAS, AND THE PLASTIC GAS TANKS. I BELIEVE DUCATI NORTH AMERICA NEEDS TO GO BACK TO RE-DESIGN TANKS, POSSIBLY GO BACK TO METAL GAS TANKS. I WILL BE CONTACTING DUCATI AGAIN SOON TO SEE IF THEY WILL REPLACE MY 2ND EXPANDED GAS TANK. I ALSO HAVE SAFETY CONCERNS. I WORRY THAT THE TANK CAN BURST FROM THE PRESSURE, AND HAVE CONCERNS THAT THIS COULD OCCUR WHEN I AM DRIVING IT. *TR
FUEL TANK ON 2007 DUCATI S4R IS EXPANDING AND BULGING. CONCERNED GAS TANK WILL EVENTUALLY SPLIT, LEAKING FUEL ON HOT ENGINE RESULTING IN FIRE. *TR
EXPANDING PLASTIC GAS TANK ON A 2007 DUCATI MONSTER S4RS MOTORCYCLE. *TR
THE GAS TANK ON MY 2007 DUCATI MONSTER 695 HAS EXPANDED TO THE POINT WHERE IT IS NO LONGER TO PROPERLY ATTACH TO THE MOTORCYCLE. I HAVE REQUESTED A NEW TANK FROM DUCATI NORTH AMERICA, AND AM AWAITING A DECISION ON WHETHER OR NOT TO REPLACE IT. *TR
MY MOTORCYCLE HAS A PLASTIC GAS TANK WHICH HAS BEEN EXPANDING. THE OUTSIDE DIMENSIONS OF THE TANK HAVE INCREASED AND IT NOW THE HANDLEBARS HIT IT ON TURNING AND IT PRESSES AGAINST THE IGNITION SWITCH BUT WHAT IS MORE WORRYING IS THE FACT THAT WHEN HIT A MODERATE BUMP ON THE ROAD, THE TANK BECOMES UNLATCHED AND REQUIRES ME TO RE…
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MY MOTORCYCLE HAS A PLASTIC GAS TANK WHICH HAS BEEN EXPANDING. THE OUTSIDE DIMENSIONS OF THE TANK HAVE INCREASED AND IT NOW THE HANDLEBARS HIT IT ON TURNING AND IT PRESSES AGAINST THE IGNITION SWITCH BUT WHAT IS MORE WORRYING IS THE FACT THAT WHEN HIT A MODERATE BUMP ON THE ROAD, THE TANK BECOMES UNLATCHED AND REQUIRES ME TO RELATCH IT TO PREVENT THE TANK FROM BECOMING LOOSE. ADDITIONALLY, PREVIOUSLY IT OPENED AND CLOSED WITHOUT PROBLEMS, NOW IT IS COMPLETELY WEDGED AGAINST THE IGNITION SWITCH WHEN CLOSED. I HAVE NOT SIGNIFICANTLY MODIFIED MY MOTORCYCLE. I TOOK THE BIKE TO THE DEALER WHO SUBMITTED A CLAIM TO DUCATI NORTH AMERICA AND THEY REPLACED THE TANK. HOWEVER, THE NEW TANK THAT I HAVE HAS STARTED TO SHOW THE SAME PROBLEMS AGAIN WITHIN JUST FOUR MONTHS. I AM VERY CONCERNED AS TO THE SAFETY OF THIS MOTORCYCLE NOW. THE TANK'S SWELLING HAS MADE IT SO THE HANDLEBARS DO NOT TURN CORRECTLY. IF THE TANK SWELLS ENOUGH I FEAR THIS WILL CAUSE THE TANK TO SPLIT OPEN WHILE RIDING OR THAT THE TANK WILL BECOMES UNLATCHED WHILE RIDING AND POSSIBLY CAUSE SERIOUS INJURY OR WORSE. *TR
MY MOTORCYCLE HAS A PLASTIC GAS TANK WHICH HAS BEGUN TO EXPAND. THE OUTSIDE DIMENSIONS OF THE TANK HAVE INCREASED AND IT NOW DOES NOT SIT CORRECTLY IN THE FRAME, THE HANDLEBARS HIT IT ON TURNING, AND IT PRESSES AGAINST THE IGNITION SWITCH. PREVIOUSLY IT OPENED AND CLOSED WITHOUT PROBLEMS, NOW I HAVE TO WEDGE IT AGAINST THE IG…
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MY MOTORCYCLE HAS A PLASTIC GAS TANK WHICH HAS BEGUN TO EXPAND. THE OUTSIDE DIMENSIONS OF THE TANK HAVE INCREASED AND IT NOW DOES NOT SIT CORRECTLY IN THE FRAME, THE HANDLEBARS HIT IT ON TURNING, AND IT PRESSES AGAINST THE IGNITION SWITCH. PREVIOUSLY IT OPENED AND CLOSED WITHOUT PROBLEMS, NOW I HAVE TO WEDGE IT AGAINST THE IGNITION SWITCH TO CLOSE IT. THE RUBBER MOUNTS NO LONGER SIT ON THE FRAME CORRECTLY. I HAVE NOT SIGNIFICANTLY MODIFIED MY MOTORCYCLE. I TOOK THE BIKE TO THE DEALER WHO SUBMITTED A CLAIM TO DUCATI NORTH AMERICA (THE IMPORTER/FACTORY) AND THEY REFUSED TO REPLACE THE TANK... I AM VERY CONCERNED AS TO THE SAFETY OF THIS MOTORCYCLE NOW. THE TANK'S SWELLING HAS MADE IT SO THE HANDLEBARS DO NOT TURN CORRECTLY. IF THE TANK SWELLS ENOUGH, IT WILL SPLIT OPEN AND I AM CONCERNED THIS WILL HAPPEN WHILE I AM RIDING. *TR
Official recalls
107V477000 · Engine And Engine Cooling
Oct 11, 2007
ON CERTAIN MOTORCYCLES, THE WATER IMPELLER DOES NOT TURN DUE TO THE INSTALLATION OF AN INCORRECT LAYSHAFT. IMPROPER OPERATION OF THE WATER PUMP COULD OCCUR CAUSING OVERHEATING OF THE ENGINE COMPONENTS AND POSSIBLY ENGINE SEIZURE.
Consequence & remedy
Consequence: IF THE ENGINE STOPPED WHILE THE MOTORCYCLE WAS BEING DRIVEN, IT COULD INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL CHECK THE WATER PUMP FOR PROPER OPERATION AND WILL REPLACE IT IF NECESSARY FREE OF CHARGE. THE RECALL BEGAN ON NOVEMBER 14, 2007. OWNER MAY CONTACT DUCATI AT 408-253-0499.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE10045 · Fuel Leak At Pump/tank Interface
Opened Nov 4, 2010 · Closed Feb 28, 2011
Status: closed (inferred from source dates) · Fuel System, Gasoline:storage:tank Assembly
After opening this PE, we met with subject owners, dealers, and Ducati North America personnel.We learned that the subject leakage is limited to the Multistrada line alone and is unrelated to composite fuel tank deformation.Rather it stems from the inability of the original sealing O-ring to conform to the tank's relatively rough sealing surface.Recall 11V-020 provides a new X section O-ring to address the Multistrada issue and with that recall, this PE is closed for the Multistrada.Meanwhile, unlike the Multistrada, the Monster line fails to exhibit a current safety defect trend and, on that basis, this PE is closed for those models as well.