Triumph 1500 vs Triumph Speed triple sidecar combinati: 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 Speed triple sidecar combinati
90%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph Speed triple sidecar combinati (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph Speed triple sidecar combinati |
|---|---|---|
| MOT pass rate | 74% | 90% ✓ |
| MOT failure rate | 26% | 10% ✓ |
| Faults & advisories per test | 2.3 | 0.4 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 69,269 mi |
| Sample size (vehicles) | 37,142 | 1 |
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 Speed triple sidecar combinati
- Rear Registration plate does not have black characters on a yellow background (6.3.2a)
- Front Tyre worn close to the legal limit (4.1.3(ii))
- Rear Tyre worn close to the legal limit (4.1.3(ii))
- Rear Shock absorber has limited damping.
- Rear Tyre worn close to the legal limit (5.2.3 (e))
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph Speed triple sidecar combinati (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph Speed triple sidecar combinati 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.