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MOT reliability

Triumph Bonneville street twin

719 vehicles · 1,197 completed MOT tests analysed
94%
MOT pass rate

Based on 719 Triumph Bonneville street twin vehicles and 1,197 completed MOT tests, the Triumph Bonneville street twin has an overall 94% pass rate, with an average recorded mileage of 6,138 miles.

719
Vehicles
1,197
MOT tests
1,324
Avg miles / year
0.2
Faults per test
5%
Dangerous-fault share

Triumph Bonneville street twin problem areas

Where faults occur most across all Triumph Bonneville street twin MOT tests:

  • Brakes36%
  • Tyres, wheels & suspension34%
  • Lamps & electrical22%
  • Body & structure14%
  • Steering7%
  • Other5%
  • Seatbelts & equipment2%
  • Identification & plates1%

Triumph Bonneville street twin pass rate by age

How the Triumph Bonneville street twin's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
21794%
354894%
441193%
510194%
610100%
71090%
8875%
9786%
102100%

Fuel types: Petrol (693), Other (26)

Most common Triumph Bonneville street twin MOT faults

These are the faults and advisories recorded most often across Triumph Bonneville street twin MOT tests:

  1. Front Tyre worn close to the legal limit (5.2.3 (e)) (45 times)
  2. Front Brake pad(s) close to minimum limit (1.1.13 (a)) (34 times)
  3. Rear Tyre worn close to the legal limit (5.2.3 (e)) (23 times)
  4. Front Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (18 times)
  5. Headlamp aim too low (4.1.2 (a)) (11 times)
  6. Drive chain slightly loose (6.1.7 (c) (i)) (10 times)
  7. Headlamp aim too high (4.1.2 (a)) (10 times)
  8. Drive chain worn but not considered excessive (6.1.7 (c) (i)) (10 times)
  9. Rear Brake pad(s) close to minimum limit (1.1.13 (a)) (9 times)
  10. Rear reflector missing (4.8.2 (a) (ii)) (7 times)
  11. Front Brake pad(s) less than 1.0 mm thick (1.1.13 (a)) (6 times)
  12. Steering headbearing slightly stiff or notchy (2.2.2 (f) (i)) (6 times)
  13. Front Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e)) (4 times)
  14. Headlamp not working on dipped beam (4.1.1 (a) (ii)) (4 times)
  15. Horn not working (7.7 (a)) (4 times)

Triumph Bonneville street twin pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2023 8 8 100% 5,192
2022 315 541 93% 5,472
2021 203 493 94% 6,768
2020 1 3 100% 7,052
2019 3 15 87% 5,041
2017 2 15 80% 14,283
2016 5 39 92% 15,493

Triumph Bonneville street twin reliability FAQ

Across 719 Triumph Bonneville street twin vehicles in our MOT data, 94% pass the MOT (a 6% failure rate), with about 0.2 faults or advisories recorded per test.

The most frequently recorded Triumph Bonneville street twin MOT issues are: Front Tyre worn close to the legal limit (5.2.3 (e)); Front Brake pad(s) close to minimum limit (1.1.13 (a)); Rear Tyre worn close to the legal limit (5.2.3 (e)).

The typical Triumph Bonneville street twin in our data has covered around 6,138 miles.

Compare the Triumph Bonneville street twin

See how the Triumph Bonneville street twin stacks up against other Triumph models on MOT reliability:

Bonneville street twin vs Toledo Bonneville street twin vs Unknown Bonneville street twin vs 2000 Bonneville street twin vs 1500

Check a specific Triumph Bonneville street twin

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See all Triumph models · Learn about common MOT failures · what an MOT checks