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MOT reliability

Triumph Street twin

24 vehicles · 140 completed MOT tests analysed
90%
MOT pass rate

Based on 24 Triumph Street twin vehicles and 140 completed MOT tests, the Triumph Street twin has an overall 90% pass rate, with an average recorded mileage of 10,972 miles.

24
Vehicles
140
MOT tests
1,154
Avg miles / year
0.5
Faults per test
9%
Dangerous-fault share

Triumph Street twin problem areas

Where faults occur most across all Triumph Street twin MOT tests:

  • Tyres, wheels & suspension29%
  • Lamps & electrical23%
  • Brakes23%
  • Body & structure16%
  • Other12%
  • Steering4%
  • Identification & plates4%
  • Emissions & nuisance3%

Triumph Street twin pass rate by age

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

Age (years)TestsPass rate
21100%
319100%
42789%
52781%
62181%
71995%
81493%
99100%
103100%

Fuel types: Petrol (24)

Most common Triumph Street twin MOT faults

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

  1. Front Tyre worn close to the legal limit (5.2.3 (e)) (11 times)
  2. Front Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (5 times)
  3. Drive chain slightly loose (6.1.7 (c) (i)) (4 times)
  4. Rear Tyre worn close to the legal limit (5.2.3 (e)) (4 times)
  5. Headlamp aim too low (4.1.2 (a)) (3 times)
  6. Rear Brake pad(s) close to minimum limit (1.1.13 (a)) (3 times)
  7. Front tyre slightly perished (3 times)
  8. Rear Drive chain slightly loose (6.1.7 (c) (i)) (2 times)
  9. Front Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e)) (2 times)
  10. Rear Brake pad(s) less than 1.0 mm thick (1.1.13 (a)) (2 times)
  11. Drive chain sprocket worn, but not excessively (6.1.7 (c) (i)) (2 times)
  12. Central Front Tyre worn close to the legal limit (5.2.3 (e)) (1 times)
  13. Nearside Direction indicator flashing more than 120 times a minute (4.4.4 (a)) (1 times)
  14. Offside Direction indicator flashing more than 120 times a minute (4.4.4 (a)) (1 times)
  15. Exhaust noisy (8.1.1 (a)) (1 times)

Triumph Street twin pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2020 3 9 89% 7,003
2019 4 20 95% 8,773
2018 2 12 83% 25,498
2017 4 21 95% 8,617
2016 11 78 88% 10,855

Triumph Street twin reliability FAQ

Across 24 Triumph Street twin vehicles in our MOT data, 90% pass the MOT (a 10% failure rate), with about 0.5 faults or advisories recorded per test.

The most frequently recorded Triumph Street twin MOT issues are: Front Tyre worn close to the legal limit (5.2.3 (e)); Front Brake indicates slight fluctuation of brake effort (1.2.1 (e)); Drive chain slightly loose (6.1.7 (c) (i)).

The typical Triumph Street twin in our data has covered around 10,972 miles.

Compare the Triumph Street twin

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

Street twin vs Toledo Street twin vs Unknown Street twin vs 2000 Street twin vs 1500

Check a specific Triumph Street twin

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

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