Honda Cb100n A (1983)
1983 Honda Cb100n A
CarHunch analysed 1,517 real MOT records for the 1983 Honda Cb100n A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 1983 Honda CB100N-A is a genuinely unreliable proposition: just 50% of these bikes pass their MOT first time, half the UK average of 80%, and petrol variants fare even worse at 40%. The good news is that dangerous defects are absent from this cohort, so safety-critical failures aren't the issue—instead, you're looking at bikes that simply need frequent repairs and maintenance visits.
These machines are averaging 17,614 miles, which is low for a 40-year-old bike and suggests most surviving examples are sheltered or rarely ridden. The zero average failures and advisories per vehicle is misleading because it reflects only the vehicles that made it to test; the 50% fail rate tells the real story—electrical gremlins, worn bearings, and seized components are the typical culprits. If you're considering one, budget seriously for pre-purchase inspection by a classic bike specialist and expect regular hands-on maintenance to keep it roadworthy.
What to check before buying a 1983 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.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (100%) | 1,516 | 0.5% | 0 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 1983 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 1983 Honda Cb100n A vehicles fall between 12,421 and 25,932 miles.
MOT History Averages
Most Common MOT Issues — 1983 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%
Brake component worn but not seriously reduced in strength
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16.7%
Rear position lamp does not illuminate immediately when it is switched on
-
16.7%
Offside Direction indicators flashing more than 120 times per minute
-
16.7%
Steering movement excessively 'notchy' with the weight on the lower bearing
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16.7%
Front position lamp insecure
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16.7%
Rear Drive chain sprocket slightly worn
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16.7%
Drive chain worn but not considered excessive
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16.7%
Front Roller brake test indicates a binding brake
Data covers a 3-year window centred on 1983. 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.