TRIUMPH TIGER 660 SPORT
The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate over time
The TIGER 660 SPORT's first-time pass rate has risen 3.5 points since 2024, 90.9% to 94.4%.
What fails on a TIGER 660 SPORT
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| brakes |
|
21 | 38.2 | 0.3× |
| lamps and reflectors |
|
11 | 20 | 0.7× |
| structure and attachments |
|
9 | 16.4 | 1.3× |
| steering |
|
8 | 14.5 | 2.4× |
| suspension |
|
3 | 5.5 | 0.3× |
| tyres |
|
3 | 5.5 | 0.6× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the TIGER 660 SPORT beats 2 of its 2 closest rivals (TRIUMPH TIGER 800, YAMAHA XT 660 Z TENERE).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the TIGER 660 SPORT.
Compare with any bike
More TRIUMPH models
Pass rate by registration year
Best year to buy used: 2022 (94.1% pass). Weakest: 2022 (94.1%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
TRIUMPH TIGER 660 SPORT FAQ
Is the TRIUMPH TIGER 660 SPORT reliable?
The TRIUMPH TIGER 660 SPORT is more reliable than average for its class: 94.1% of its 786 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #153 of 5428 models.
What does a TIGER 660 SPORT fail its MOT on most?
brakes — 38% of all defects recorded against failed TIGER 660 SPORT tests.
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