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Honda Gb 400 vs Honda Unknown: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Honda Gb 400
90%
MOT pass rate · 5 vehicles
Honda Unknown
85%
MOT pass rate · 1,041,859 vehicles
Verdict: On MOT pass rate the Honda Gb 400 (90%) and Honda Unknown (85%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Honda Gb 400 Honda Unknown
MOT pass rate 90% ✓ 85%
MOT failure rate 10% ✓ 15%
Faults & advisories per test 0.2 ✓ 0.9
Dangerous-fault share 0% ✓ 3%
Average mileage 18,536 mi 25,474 mi
Sample size (vehicles) 5 1,041,859

Most common faults

Honda Gb 400

  1. Headlight has a beam corrector fitted to alter the low beam aim.
  2. Brake reaction bracket insecure (3.2.A1j)
  3. Horn not loud enough to be heard by another road user (1.7.3a)
  4. Stop lamp does not illuminate immediately a brake applies (1.3.1a)
  5. Rear Tyre tread depth is below minimum requirements of 1.0mm (4.1.3(ii))
  6. Wheel alignment slightly misaligned (2.4 (a))

Honda Unknown

  1. Exhaust noisy (8.1.1 (a))
  2. Rear Tyre worn close to the legal limit (5.2.3 (e))
  3. Chain guard missing
  4. Rear reflector missing (4.8.2 (a) (ii))
  5. Drive chain slightly loose (6.1.7 (c) (i))
  6. Front Brake binding but not excessively (1.2.1 (f))

Reliability FAQ

On MOT pass rate the Honda Gb 400 (90%) and Honda Unknown (85%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Honda Gb 400 report Full Honda Unknown report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.