Skip to content

Triumph Speed two vs Triumph Unknown: reliability comparison

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

Triumph Speed two
86%
MOT pass rate · 2 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
Verdict: On MOT pass rate the Triumph Speed two (86%) 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 Speed two Triumph Unknown
MOT pass rate 86% 89% ✓
MOT failure rate 14% 11% ✓
Faults & advisories per test 0.7 0.6 ✓
Dangerous-fault share 0% ✓ 2%
Average mileage 1,810 mi 16,601 mi
Sample size (vehicles) 2 65,927

Most common faults

Triumph Speed two

  1. Steering headbearing has slight free play (2.2.2)
  2. Front Wheel has an excessively distorted bead rim. (4.2.2)
  3. Front wheel bearings are excessively rough (2.3.5b)
  4. Nearside Rear Rear shock absorber insecurely mounted (2.4.A.3b)
  5. Rear suspension bush has excessive free play (2.4.A2a(i))

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 Speed two (86%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Triumph Speed two 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.