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MOT reliability

Triumph B25

3 vehicles · 29 completed MOT tests analysed
93%
MOT pass rate

Based on 3 Triumph B25 vehicles and 29 completed MOT tests, the Triumph B25 has an overall 93% pass rate, with an average recorded mileage of 10,258 miles.

3
Vehicles
29
MOT tests
364
Avg miles / year
0.3
Faults per test
0%
Dangerous-fault share

Triumph B25 problem areas

Where faults occur most across all Triumph B25 MOT tests:

  • Other144%
  • Steering22%

Fuel types: Petrol (3)

Most common Triumph B25 MOT faults

These are the faults and advisories recorded most often across Triumph B25 MOT tests:

  1. Steering headbearing has slight free play (2.2.2) (2 times)
  2. Drive chain excessively loose (6.2.1d) (1 times)
  3. Exhaust system almost fouling wiring. (1 times)
  4. Fuel and oil leaks in evidence. (1 times)
  5. Fuel pipe almost fouling cylinder head. (1 times)
  6. Fuel pipe leaking (7.2.1a) (1 times)
  7. Kick start lever loose. (1 times)
  8. Nearside Footrest insecure (6.2.1a) (1 times)
  9. Nearside Rear shock absorber has inadequate damping effect. (2.4.A.3b) (1 times)
  10. Offside Footrest insecure (6.2.1a) (1 times)
  11. Offside Rear shock absorber has inadequate damping effect. (2.4.A.3b) (1 times)
  12. Side stand bracket damaged, (1 times)
  13. CLUTCH LEVER LOOSE (1 times)
  14. Front wheel bearings have excessive free play (2.3.5b) (1 times)

Triumph B25 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1972 2 18 89% 13,531
1971 1 11 100% 3,714

Triumph B25 reliability FAQ

Across 3 Triumph B25 vehicles in our MOT data, 93% pass the MOT (a 7% failure rate), with about 0.3 faults or advisories recorded per test.

The most frequently recorded Triumph B25 MOT issues are: Steering headbearing has slight free play (2.2.2); Drive chain excessively loose (6.2.1d); Exhaust system almost fouling wiring..

The typical Triumph B25 in our data has covered around 10,258 miles.

Compare the Triumph B25

See how the Triumph B25 stacks up against other Triumph models on MOT reliability:

B25 vs Toledo B25 vs Unknown B25 vs 2000 B25 vs 1500

Check a specific Triumph B25

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