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Triumph T70 vs Triumph Unknown: reliability comparison

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

Triumph T70
94%
MOT pass rate · 4 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
Verdict: On MOT pass rate the Triumph T70 (94%) 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 T70 Triumph Unknown
MOT pass rate 94% ✓ 89%
MOT failure rate 6% ✓ 11%
Faults & advisories per test 0.4 ✓ 0.6
Dangerous-fault share 0% ✓ 2%
Average mileage 162,523 mi 16,601 mi
Sample size (vehicles) 4 65,927

Most common faults

Triumph T70

  1. Steering linkage has slight free play (2.2.2)
  2. Front suspension assembly excessive wear or free play in a front suspension component (2.3.4)
  3. Drive chain slightly loose (6.2.1d)
  4. Front wheel bearings have slight free play (2.3.5b)
  5. Rear wheel bearings have slight free play (2.4.A.2c)
  6. fuel cap seal cracking

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 T70 (94%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Triumph T70 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.