2021 Ducati Monster Problems: 1 Known Issue
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated October 2026
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Preview the XT6 exampleAccording to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Ducati Monster has 1 documented issue, with 1 rated critical. The most serious is Rear brake hose heat damage and gas permeation — two NHTSA recalls (21V-315 and 21V-335) causing rear brake failure ($0-$0 repair).
All 1 Known Issue
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Frequently Asked Questions
What are the most common Ducati Monster problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Ducati Monster has 1 documented issue. The documented issue is: Rear brake hose heat damage and gas permeation — two NHTSA recalls (21V-315 and 21V-335) causing rear brake failure. Of these, 1 is rated critical and should be addressed promptly.
Is the Ducati Monster reliable?
The 2021 Ducati Monster has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Rear brake hose heat damage and gas permeation — two NHTSA recalls (21V-315 and 21V-335) causing rear brake failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Ducati Monster problems?
Repair costs for known Ducati Monster issues range from $0 to $0, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Rear brake hose heat damage and gas permeation — two NHTSA recalls (21V-315 and 21V-335) causing rear brake failure, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2014-2021 Ducati Monster Rear brake hose heat damage and gas permeation — two NHTSA recalls (21V-315 and 21V-335) causing rear brake failure?
Two different rear-hose recalls require VIN and repair-history checks. Campaign 21V315 includes 2017–2020 Monster 797/1200 and 2018–2020 Monster 821 motorcycles that had not already received the specified hose-update TSB; excessive gas permeation can reduce rear braking. Campaign… Repairs typically run $0-$0. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public motorcycle data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.