Triumph Bonneville T140v MOT Pass Rate
Overall pass rate across all manufacture years, based on 50 real MOT test results. Failure rate: 22.0%.
Data from official DVSA MOT testing records
Triumph Bonneville T140v MOT Reliability Overview
The Triumph Bonneville T140v is a rare vehicle in the UK, with 50 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 78.0% and a failure rate of 22.0%, which is well above the UK average of approximately 37%.
Based on this data, the Triumph Bonneville T140v earns a "Excellent" reliability rating. The average Triumph Bonneville T140v presents for MOT with approximately 17,995 miles on the clock.
The most common MOT failure for the Triumph Bonneville T140v is Motorcycle lighting and signalling, affecting 18.0% of all tests. Motorcycle lighting and signalling issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. The second most common issue is Motorcycle steering and suspension at 8.0%. Motorcycle brakes rounds out the top three at 4.0%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lighting And Signalling | 22.0% | 11 |
| 2 | Motorcycle Steering And Suspension | 8.0% | 4 |
| 3 | Motorcycle Brakes | 6.0% | 3 |
| 4 | Motorcycle Tyres And Wheels | 4.0% | 2 |
| 5 | Motorcycle Fuel And Exhaust | 4.0% | 2 |
| 6 | Motorcycle Reg Plates And Vin | 2.0% | 1 |
| 7 | Motorcycle Body And Structure | 2.0% | 1 |
Failures per 10,000 Miles
avg. 17,995 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle lighting and signalling | 12.23 | 22.0% | 11 |
| Motorcycle steering and suspension | 4.45 | 8.0% | 4 |
| Motorcycle brakes | 3.33 | 6.0% | 3 |
| Motorcycle tyres and wheels | 2.22 | 4.0% | 2 |
| Motorcycle fuel and exhaust | 2.22 | 4.0% | 2 |
| Motorcycle reg plates and vin | 1.11 | 2.0% | 1 |
| Motorcycle body and structure | 1.11 | 2.0% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Triumph Bonneville T140v has 17,995 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Triumph Bonneville T140v has a mileage-adjusted failure rate of 12.23% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Triumph Bonneville T140v MOT Data
The Triumph Bonneville T140v is a rare vehicle in the UK, with 50 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 78.0% and a failure rate of 22.0%, which is well above the UK average of approximately 37%.
For Triumph Bonneville T140v owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lighting and signalling and motorcycle steering and suspension for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Bonneville T140v is likely to perform.
Motorcycle lighting and signalling — 18.0% of failures
Motorcycle lighting and signalling issues account for 18.0% of MOT failures on the Triumph Bonneville T140v. Motorcycle lighting and signalling issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Motorcycle steering and suspension — 8.0% of failures
Motorcycle steering and suspension issues account for 8.0% of MOT failures on the Triumph Bonneville T140v. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Motorcycle brakes — 4.0% of failures
Motorcycle brakes issues account for 4.0% of MOT failures on the Triumph Bonneville T140v. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Frequently Asked Questions
What is the MOT pass rate for the Triumph Bonneville T140v?
Based on 50 (based on limited data) MOT tests in our database, the Triumph Bonneville T140v has an overall pass rate of 78.0% (22.0% fail rate).
What are the most common MOT failures on a Triumph Bonneville T140v?
The top 3 reasons a Triumph Bonneville T140v fails its MOT are: 1. Motorcycle lighting and signalling (18.0%), 2. Motorcycle steering and suspension (8.0%), 3. Motorcycle brakes (4.0%). Check these areas before booking your MOT.
Is the Triumph Bonneville T140v reliable?
With a 22.0% MOT failure rate, the Bonneville T140v is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Triumph Bonneville T140v?
Based on failure data, focus on: Motorcycle lighting and signalling (18.0%); Motorcycle steering and suspension (8.0%); Motorcycle brakes (4.0%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.