Bsa Wm20 MOT Pass Rate
Overall pass rate across all manufacture years, based on 32 real MOT test results. Failure rate: 6.3%.
Data from official DVSA MOT testing records
Bsa Wm20 MOT Reliability Overview
The Bsa Wm20 is a rare vehicle in the UK, with 32 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 93.8% and a failure rate of 6.3%, which is well above the UK average of approximately 37%.
Based on this data, the Bsa Wm20 earns a "Excellent" reliability rating. The average Bsa Wm20 presents for MOT with approximately 18,038 miles on the clock.
The most common MOT failure for the Bsa Wm20 is Motorcycle reg plates and vin, affecting 3.1% of all tests. Motorcycle reg plates and vin 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 tyres and wheels at 3.1%. Together, these top 2 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 Tyres And Wheels | 3.1% | 1 |
| 2 | Motorcycle Reg Plates And Vin | 3.1% | 1 |
Failures per 10,000 Miles
avg. 18,038 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 tyres and wheels | 1.73 | 3.1% | 1 |
| Motorcycle reg plates and vin | 1.73 | 3.1% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Bsa Wm20 has 18,038 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 Bsa Wm20 has a mileage-adjusted failure rate of 3.49% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Bsa Wm20 MOT Data
The Bsa Wm20 is a rare vehicle in the UK, with 32 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 93.8% and a failure rate of 6.3%, which is well above the UK average of approximately 37%.
For Bsa Wm20 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle reg plates and vin and motorcycle tyres and wheels 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 Wm20 is likely to perform.
Motorcycle reg plates and vin — 3.1% of failures
Motorcycle reg plates and vin issues account for 3.1% of MOT failures on the Bsa Wm20. Motorcycle reg plates and vin 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 tyres and wheels — 3.1% of failures
Motorcycle tyres and wheels issues account for 3.1% of MOT failures on the Bsa Wm20. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Frequently Asked Questions
What is the MOT pass rate for the Bsa Wm20?
Based on 32 (based on limited data) MOT tests in our database, the Bsa Wm20 has an overall pass rate of 93.8% (6.3% fail rate).
What are the most common MOT failures on a Bsa Wm20?
The top 2 reasons a Bsa Wm20 fails its MOT are: 1. Motorcycle reg plates and vin (3.1%), 2. Motorcycle tyres and wheels (3.1%). Check these areas before booking your MOT.
Is the Bsa Wm20 reliable?
With a 6.3% MOT failure rate, the Wm20 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Bsa Wm20?
Based on failure data, focus on: Motorcycle reg plates and vin (3.1%); Motorcycle tyres and wheels (3.1%). 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.