Honda Cb400 Superfour MOT Pass Rate
Overall pass rate across all manufacture years, based on 44 real MOT test results. Failure rate: 11.4%.
Data from official DVSA MOT testing records
Honda Cb400 Superfour MOT Reliability Overview
The Honda Cb400 Superfour is a rare vehicle in the UK, with 44 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 88.6% and a failure rate of 11.4%, which is well above the UK average of approximately 37%.
Based on this data, the Honda Cb400 Superfour earns a "Excellent" reliability rating. The average Honda Cb400 Superfour presents for MOT with approximately 33,497 miles on the clock.
The most common MOT failure for the Honda Cb400 Superfour is Motorcycle steering and suspension, affecting 4.5% of all tests. 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. The second most common issue is Motorcycle fuel and exhaust at 2.3%. Motorcycle tyres and wheels rounds out the top three at 2.3%. 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 Steering And Suspension | 9.1% | 4 |
| 2 | Motorcycle Fuel And Exhaust | 4.5% | 2 |
| 3 | Motorcycle Lamps And Reflectors | 2.3% | 1 |
| 4 | Motorcycle Tyres | 2.3% | 1 |
| 5 | Motorcycle Brakes | 2.3% | 1 |
| 6 | Motorcycle Tyres And Wheels | 2.3% | 1 |
| 7 | Motorcycle Lighting And Signalling | 2.3% | 1 |
Failures per 10,000 Miles
avg. 33,497 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 steering and suspension | 2.71 | 9.1% | 4 |
| Motorcycle fuel and exhaust | 1.36 | 4.5% | 2 |
| Motorcycle lamps and reflectors | 0.68 | 2.3% | 1 |
| Motorcycle tyres | 0.68 | 2.3% | 1 |
| Motorcycle brakes | 0.68 | 2.3% | 1 |
| Motorcycle tyres and wheels | 0.68 | 2.3% | 1 |
| Motorcycle lighting and signalling | 0.68 | 2.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Honda Cb400 Superfour has 33,497 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 Cb400 Superfour has a mileage-adjusted failure rate of 3.40% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Honda Cb400 Superfour MOT Data
The Honda Cb400 Superfour is a rare vehicle in the UK, with 44 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 88.6% and a failure rate of 11.4%, which is well above the UK average of approximately 37%.
For Honda Cb400 Superfour owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle steering and suspension and motorcycle fuel and exhaust 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 Cb400 Superfour is likely to perform.
Motorcycle steering and suspension — 4.5% of failures
Motorcycle steering and suspension issues account for 4.5% of MOT failures on the Honda Cb400 Superfour. 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 fuel and exhaust — 2.3% of failures
Motorcycle fuel and exhaust issues account for 2.3% of MOT failures on the Honda Cb400 Superfour. Motorcycle fuel and exhaust 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 — 2.3% of failures
Motorcycle tyres and wheels issues account for 2.3% of MOT failures on the Honda Cb400 Superfour. 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 Honda Cb400 Superfour?
Based on 44 (based on limited data) MOT tests in our database, the Honda Cb400 Superfour has an overall pass rate of 88.6% (11.4% fail rate).
What are the most common MOT failures on a Honda Cb400 Superfour?
The top 3 reasons a Honda Cb400 Superfour fails its MOT are: 1. Motorcycle steering and suspension (4.5%), 2. Motorcycle fuel and exhaust (2.3%), 3. Motorcycle tyres and wheels (2.3%). Check these areas before booking your MOT.
Is the Honda Cb400 Superfour reliable?
With a 11.4% MOT failure rate, the Cb400 Superfour is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Honda Cb400 Superfour?
Based on failure data, focus on: Motorcycle steering and suspension (4.5%); Motorcycle fuel and exhaust (2.3%); Motorcycle tyres and wheels (2.3%). 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.