Triumph 1500 vs Triumph 900 trident: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph 1500
74%
MOT pass rate · 37,142 vehicles
Triumph 900 trident
88%
MOT pass rate · 7 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph 900 trident (88%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph 900 trident |
|---|---|---|
| MOT pass rate | 74% | 88% ✓ |
| MOT failure rate | 26% | 12% ✓ |
| Faults & advisories per test | 2.3 | 0.7 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 36,484 mi |
| Sample size (vehicles) | 37,142 | 7 |
Most common faults
Triumph 1500
- Parking brake: efficiency below requirements (3.7.B.7)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Nearside Rear wheel bearing has slight play (2.6.2)
- Offside Rear wheel bearing has slight play (2.6.2)
- Brakes imbalanced across an axle (3.7.B.5b)
- Oil leak
Triumph 900 trident
- Exhaust noisy (8.1.1 (a))
- Wheel alignment slightly misaligned. (2.5.1)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Steering headbearing has slight free play (2.2.2 (f) (i))
- Nearside Front Headlamp damaged but function not impaired (1.2.3a)
- Rear Brake pad(s) close to minimum limit (3.2.A1f(i))
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph 900 trident (88%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph 900 trident 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.