Honda Cb100n A (1985)
1985 Honda Cb100n A
CarHunch analysed 565 real MOT records for the 1985 Honda Cb100n A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 1985 Honda CB100N-A is a serious reliability concern — only 30% pass their MOT on the first attempt, far below the 80% UK average, and the petrol variants fare even worse at just 10% first-time pass rate. No dangerous defects were recorded across the 565 vehicles analysed, which is the only bright spot here.
These bikes are now nearly 40 years old and averaging just 16,371 miles, suggesting most have spent considerable time in storage rather than regular use — a major red flag for classic motorcycles, as seized engines and fuel system corrosion are common after dormancy. With zero failures and advisories recorded on average, the data likely reflects that many vehicles aren't roadworthy enough to accumulate meaningful test results; before committing to one, have a pre-purchase inspection by a specialist who can assess fuel lines, electrics, and whether the engine will actually turn over.
What to check before buying a 1985 Honda Cb100n A
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Honda Cb100n A
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
CarHunch may earn a small commission if you buy via these links — at no extra cost to you.
Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (100%) | 564 | 0.1% | 0 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 1985 Honda Cb100n A vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1985 Honda Cb100n A vehicles fall between 16,371 and 16,371 miles.
MOT History Averages
Most Common MOT Issues — 1985 Honda Cb100n A
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
16.7%
Front Stop lamp remains on when the brake is released
-
16.7%
Front Roller brake test indicates a sticking brake
-
16.7%
Wheel alignment incorrect which adversely affects the handling
-
16.7%
Direction indicator flashing less than 60 times a minute
-
16.7%
Rear Tyre not fitted in accordance with side wall instruction/s
-
16.7%
Front tyre slightly perished.Rear lower engine mounting bolt sheared.
-
16.7%
Nearside Direction indicators flashing more than 120 times per minute
-
16.7%
Brake component worn but not seriously reduced in strength
Data covers a 3-year window centred on 1985. Counts include advisories and failures.
Found a specific Honda Cb100n A?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.