Honda Cb400 (1993)

174 real MOT outcomes analysed • 82.8% first-time pass rate

1993 Honda Cb400

CarHunch analysed 174 real MOT records for the 1993 Honda Cb400. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 1993 Honda CB400 passes its MOT slightly above the UK average at 82.8%, which is a solid result for a machine now over 30 years old. One in six of these bikes (17.2%) have shown a dangerous defect at some point, so mechanical integrity checks should be thorough before purchase.

Most examples have clocked around 36,000 miles, which is reasonable for their age, though they're accumulating an average of 1.82 failures per test—suggesting wear items and age-related problems are becoming routine. Before buying, get an independent inspection focused on braking system condition and fuel system integrity, as advisories average 5.3 per vehicle and often flag the areas where older bikes deteriorate fastest.

Average reliability 2.8% above UK average
82.8%
pass MOT first time
UK average: ~80%
36,149
typical mileage
23,891–48,859 middle half
17.2%
ever had a dangerous defect
recorded at any MOT
1.82
avg MOT failures per car
over 9.9 tests on record

What to check before buying a 1993 Honda Cb400

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 Cb400

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 (98%) 171 82.9% 1.82
Other (1%) 2 69.4% 2
Other (1%) 1 85.7% 1

Mileage Distribution

Most 1993 Honda Cb400 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.

23,891
low mileage
36,149
typical
48,859
high mileage

Half of all 1993 Honda Cb400 vehicles fall between 23,891 and 48,859 miles.

1993 Honda Cb400 — Still on the Road

Numbers are declining — 36 vehicles still getting MOTs in 2025 (45% of peak).

80 36 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.

MOT History Averages

9.9
Avg MOT tests per vehicle
1.82
Avg failures per vehicle
5.3
Avg advisories per vehicle

Most Common MOT Issues — 1993 Honda Cb400

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 38.1%
    Front Tyre worn close to the legal limit
  • 32.6%
    Rear Tyre worn close to the legal limit
  • 24.1%
    Drive chain slightly loose
  • 20.8%
    Rear Brake disc(s) slightly worn
  • 16.5%
    Front Roller brake test indicates slight fluctuation of brake effort
  • 16.3%
    Exhaust noisy
  • 16.3%
    Steering headbearing has slight free play
  • 15%
    Drive chain worn but not considered excessive

Data covers a 3-year window centred on 1993. Counts include advisories and failures.

Found a specific Honda Cb400?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Honda Cb400:

1992