Honda C90mg (1990)
1990 Honda C90mg
CarHunch analysed 611 real MOT records for the 1990 Honda C90mg. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1990 Honda C90MG has a 3.4% first-time pass rate—catastrophically below the 80% UK average—which means these 30-year-old machines are almost certain to fail their MOT on the first attempt. The dangerous defect rate is mercifully low at just 0.3%, so when failures do occur, they're typically fixable rather than safety-critical.
These bikes are running just under 18,200 miles on average, which is reasonable for their age, yet the near-zero pass rate suggests systematic wear across multiple systems rather than isolated problems. With an average of only 0.04 failures and 0.1 advisories per vehicle once they do pass, the underlying engineering is sound—but expect to budget for a full refresh of brakes, exhaust, lights, and suspension before these bikes will meet modern MOT standards.
What to check before buying a 1990 Honda C90mg
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 C90mg
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%) | 608 | 2.9% | 0.04 |
| Other (0%) | 3 | 95.8% | 0.33 |
Mileage Distribution
Most 1990 Honda C90mg 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 1990 Honda C90mg vehicles fall between 12,141 and 22,771 miles.
MOT History Averages
Most Common MOT Issues — 1990 Honda C90mg
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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10.6%
Rear shock absorber has a slightly reduced damping effect
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10.6%
Rear Tyre tread depth is below minimum requirements of 1.0mm
-
10.6%
Wheel alignment slightly misaligned.
-
9.1%
Exhaust noisy
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9.1%
Rear Tyre worn close to the legal limit
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9.1%
Rear Motorcycle structure slightly corroded
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7.6%
Rear Motorcycle structure excessively corroded
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7.6%
Front Front suspension assembly has excessive free play in the pivot bearings.
Data covers a 3-year window centred on 1990. Counts include advisories and failures.
Found a specific Honda C90mg?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.