Bsa Thunder Bolt MOT Pass Rate
Overall pass rate across all manufacture years, based on 76 real MOT test results. Failure rate: 5.3%.
Data from official DVSA MOT testing records
Bsa Thunder Bolt MOT Reliability Overview
The Bsa Thunder Bolt is a rare vehicle in the UK, with 76 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 94.7% and a failure rate of 5.3%, which is well above the UK average of approximately 37%.
Based on this data, the Bsa Thunder Bolt earns a "Excellent" reliability rating. The average Bsa Thunder Bolt presents for MOT with approximately 19,660 miles on the clock.
The most common MOT failure for the Bsa Thunder Bolt is Motorcycle lighting and signalling, affecting 3.9% 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 body and structure at 1.3%. 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 Lighting And Signalling | 3.9% | 3 |
| 2 | Motorcycle Body And Structure | 1.3% | 1 |
Failures per 10,000 Miles
avg. 19,660 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 | 2.01 | 3.9% | 3 |
| Motorcycle body and structure | 0.67 | 1.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Bsa Thunder Bolt has 19,660 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 Thunder Bolt has a mileage-adjusted failure rate of 2.70% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Bsa Thunder Bolt MOT Data
The Bsa Thunder Bolt is a rare vehicle in the UK, with 76 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 94.7% and a failure rate of 5.3%, which is well above the UK average of approximately 37%.
For Bsa Thunder Bolt 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 body and structure 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 Thunder Bolt is likely to perform.
Motorcycle lighting and signalling — 3.9% of failures
Motorcycle lighting and signalling issues account for 3.9% of MOT failures on the Bsa Thunder Bolt. 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 body and structure — 1.3% of failures
Motorcycle body and structure issues account for 1.3% of MOT failures on the Bsa Thunder Bolt. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Frequently Asked Questions
What is the MOT pass rate for the Bsa Thunder Bolt?
Based on 76 (based on limited data) MOT tests in our database, the Bsa Thunder Bolt has an overall pass rate of 94.7% (5.3% fail rate).
What are the most common MOT failures on a Bsa Thunder Bolt?
The top 2 reasons a Bsa Thunder Bolt fails its MOT are: 1. Motorcycle lighting and signalling (3.9%), 2. Motorcycle body and structure (1.3%). Check these areas before booking your MOT.
Is the Bsa Thunder Bolt reliable?
With a 5.3% MOT failure rate, the Thunder Bolt is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Bsa Thunder Bolt?
Based on failure data, focus on: Motorcycle lighting and signalling (3.9%); Motorcycle body and structure (1.3%). 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.