Honda Cb400t MOT Pass Rate
Overall pass rate across all manufacture years, based on 227 real MOT test results. Failure rate: 15.0%.
Data from official DVSA MOT testing records
Honda Cb400t MOT Reliability Overview
The Honda Cb400t is a rare vehicle in the UK, with 227 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 85.0% and a failure rate of 15.0%, which is well above the UK average of approximately 37%.
Based on this data, the Honda Cb400t earns a "Excellent" reliability rating. The average Honda Cb400t presents for MOT with approximately 28,103 miles on the clock. Manufacture year matters: 1977 models achieve the highest pass rate at 90.2%, while 1978 models have the lowest at 83.0%. This 7.2 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Honda Cb400t is Motorcycle lighting and signalling, affecting 10.1% 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 6.6%. Motorcycle drive system rounds out the top three at 4.4%. 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
Pass Rate by Manufacture Year
* 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 | 11.9% | 27 |
| 2 | Motorcycle Steering And Suspension | 7.9% | 18 |
| 3 | Motorcycle Drive System | 4.8% | 11 |
| 4 | Motorcycle Brakes | 4.4% | 10 |
| 5 | Motorcycle Tyres And Wheels | 2.2% | 5 |
| 6 | Motorcycle Structure And Attachments | 1.3% | 3 |
| 7 | Motorcycle Body And Structure | 1.3% | 3 |
| 8 | Motorcycle Lamps And Reflectors | 1.3% | 3 |
| 9 | Motorcycle Sidecar | 0.4% | 1 |
| 10 | Motorcycle Fuel And Exhaust | 0.4% | 1 |
| 11 | Non-component Advisories | 0.4% | 1 |
Failures per 10,000 Miles
avg. 28,103 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 | 4.23 | 11.9% | 27 |
| Motorcycle steering and suspension | 2.82 | 7.9% | 18 |
| Motorcycle drive system | 1.72 | 4.8% | 11 |
| Motorcycle brakes | 1.57 | 4.4% | 10 |
| Motorcycle tyres and wheels | 0.78 | 2.2% | 5 |
| Motorcycle structure and attachments | 0.47 | 1.3% | 3 |
| Motorcycle body and structure | 0.47 | 1.3% | 3 |
| Motorcycle lamps and reflectors | 0.47 | 1.3% | 3 |
| Motorcycle sidecar | 0.16 | 0.4% | 1 |
| Motorcycle fuel and exhaust | 0.16 | 0.4% | 1 |
| Non-component advisories | 0.16 | 0.4% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Honda Cb400t has 28,103 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 Honda Cb400t has a mileage-adjusted failure rate of 5.34% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Honda Cb400t MOT Data
The Honda Cb400t is a rare vehicle in the UK, with 227 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 85.0% and a failure rate of 15.0%, which is well above the UK average of approximately 37%.
For Honda Cb400t 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 Cb400t is likely to perform.
Motorcycle lighting and signalling — 10.1% of failures
Motorcycle lighting and signalling issues account for 10.1% of MOT failures on the Honda Cb400t. 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 — 6.6% of failures
Motorcycle steering and suspension issues account for 6.6% of MOT failures on the Honda Cb400t. 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 drive system — 4.4% of failures
Motorcycle drive system issues account for 4.4% of MOT failures on the Honda Cb400t. Motorcycle drive system 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.
Frequently Asked Questions
What is the MOT pass rate for the Honda Cb400t?
Based on 227 MOT tests in our database, the Honda Cb400t has an overall pass rate of 85.0% (15.0% fail rate).
What are the most common MOT failures on a Honda Cb400t?
The top 3 reasons a Honda Cb400t fails its MOT are: 1. Motorcycle lighting and signalling (10.1%), 2. Motorcycle steering and suspension (6.6%), 3. Motorcycle drive system (4.4%). Check these areas before booking your MOT.
Is the Honda Cb400t reliable?
With a 15.0% MOT failure rate, the Cb400t is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Honda Cb400t?
Based on failure data, focus on: Motorcycle lighting and signalling (10.1%); Motorcycle steering and suspension (6.6%); Motorcycle drive system (4.4%). 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.