2006 Ducati Monster S4 R Recalls
No NHTSA recalls on record for the 2006 Ducati Monster S4 R. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 12 complaints with NHTSA, most often about the fuel system, gasoline. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“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…”
“Plastic fuel tank swelling. *tr”
“2006 ducati monster s2r gas tank is expanding and flexing. Eventual failure would lead to fuel leaking onto hot engine and exhaust parts. *tr”
“I own a 2006 ducati monster s2r-1000 (purchased new 11/2006), and it has a plastic gas tank that has become distorted from its original shape. My fuel tank has become distorted on the left/ right sides of the tank in the area where my knees touch the tank. There is some type of demformation around…”
“Plastic gas tank expanding on ducati monster s2r1000. Tank has not ruptured or failed yet, but continued expansion could cause damage. *tr”
“The plastic gas tank on my motorcycle is swelling, causing it to not fit properly on the frame anymore. It is also interfering with the ignition switch and tank latch mechanism. There is also cosmetic damage (ripples) on the side of the tank. Am worried that tank will eventually fail or leak. *tr”
“The gas tank on my 2006 ducati monster s2r has expanded in both width and length. The larger dimensions now allow the handlebars to hit the tank which could cause a loss of control/crash. Another worrisome issue with an ever-expanding plastic gas tank is the fact that it sits in your lap while…”
“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 nearly hit it on turning, and it nearly presses against the ignition switch. The rubber mounts no longer sit on the frame…”
Defect investigations
Fuel leak at pump/tank interface
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…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2006 Ducati Monster S4 R as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.