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Kawasaki Unknown vs Kawasaki Z 550-gt: reliability comparison

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

Kawasaki Unknown
85%
MOT pass rate · 151,652 vehicles
More reliable
Kawasaki Z 550-gt
79%
MOT pass rate · 704 vehicles
Verdict: On MOT pass rate, the Kawasaki Unknown is the more reliable of the two — 85% pass first time versus 79%. It's one signal among several; check the full breakdown below.

Head to head

Measure Kawasaki Unknown Kawasaki Z 550-gt
MOT pass rate 85% 79%
MOT failure rate 15% 21%
Faults & advisories per test 0.8 0.8
Dangerous-fault share 3% 1%
Average mileage 19,921 mi 46,220 mi
Sample size (vehicles) 151,652 704

Most common faults

Kawasaki Unknown

  1. Exhaust noisy (8.1.1 (a))
  2. Front Brake indicates slight fluctuation of brake effort (1.2.1 (e))
  3. COVID-19 6 MONTH EXTENSION
  4. Rear reflector missing (4.8.2 (a) (ii))
  5. Front Tyre worn close to the legal limit (5.2.3 (e))
  6. Drive chain slightly loose (6.1.7 (c) (i))

Kawasaki Z 550-gt

  1. Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
  2. Front Brake disc(s) slightly scored (3.2.A1l)
  3. Rear Roller brake test indicates a slightly juddering brake (3.3.A1b)
  4. Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
  5. Front Brake pad(s) close to minimum limit (3.2.A1f(i))
  6. Front Wheel alignment slightly misaligned. (2.5.1)

Reliability FAQ

On MOT pass rate, the Kawasaki Unknown is the more reliable of the two — 85% pass first time versus 79%. It's one signal among several; check the full breakdown below.

Full Kawasaki Unknown report Full Kawasaki Z 550-gt 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.