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Triumph Trophy250 vs Triumph Unknown: reliability comparison

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

Triumph Trophy250
92%
MOT pass rate · 1 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
Verdict: On MOT pass rate the Triumph Trophy250 (92%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Triumph Trophy250 Triumph Unknown
MOT pass rate 92% ✓ 89%
MOT failure rate 8% ✓ 11%
Faults & advisories per test 0.7 0.6 ✓
Dangerous-fault share 0% ✓ 2%
Average mileage 12,539 mi 16,601 mi
Sample size (vehicles) 1 65,927

Most common faults

Triumph Trophy250

  1. No mirrors fitted to vehicle at time of test
  2. Front tyre starting to crack.
  3. Front wheel bearings are slightly rough (2.3.5b)
  4. Steering headbearing has slight free play (2.2.2)
  5. Centre Rear Lower Wheel alignment slightly misaligned. (2.5.1)
  6. Nearside Front Lower Drive chain slightly loose (6.2.1d)

Triumph Unknown

  1. Exhaust noisy (8.1.1 (a))
  2. Exhaust noisy (7.1.2)
  3. Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
  4. COVID-19 6 MONTH EXTENSION
  5. Rear Tyre worn close to the legal limit (5.2.3 (e))
  6. Steering headbearing has slight free play (2.2.2)

Reliability FAQ

On MOT pass rate the Triumph Trophy250 (92%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Triumph Trophy250 report Full Triumph 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.