Data as of: DVSA MOT results to 2025
TRIUMPH DAYTONA 955I
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 DAYTONA 955I's first-time pass rate has held steady since 2006 (82.9% → 83.9%).
Pass rate by mileage
A low-mileage DAYTONA 955I passes first time 86.7% of the time; by 30k that's 76.5%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a DAYTONA 955I
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
58 | 25.8 | 1.0× |
| brakes |
|
54 | 24 | 0.8× |
| steering and suspension |
|
27 | 12 | 0.6× |
| tyres and wheels |
|
24 | 10.7 | 1.1× |
| lamps and reflectors |
|
13 | 5.8 | 0.4× |
| fuel and exhaust |
|
12 | 5.3 | 1.2× |
| drive system |
|
11 | 4.9 | 1.5× |
| body and structure |
|
10 | 4.4 | 1.9× |
| suspension |
|
8 | 3.6 | 1.1× |
| reg plates and vin |
|
8 | 3.6 | 1.0× |
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 DAYTONA 955I beats 2 of its 4 closest rivals (YAMAHA YZF-R1, HONDA CBR900RR, TRIUMPH DAYTONA).
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 DAYTONA 955I.
Compare with any bike
More TRIUMPH models
Pass rate by registration year
Highest pass rate: 2003 (88.3%). Lowest: 2002 (77.6%). Every Daytona 955I year compared →
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 DAYTONA 955I FAQ
Is the TRIUMPH DAYTONA 955I reliable?
The TRIUMPH DAYTONA 955I is about average for its class: 83.8% of its 1,004 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2791 of 5428 models.
What does a DAYTONA 955I fail its MOT on most?
lighting and signalling: 26% of all defects recorded against failed DAYTONA 955I tests.
What is the best year of DAYTONA 955I to buy used?
By first-time pass rate, 2003-registered examples do best (88.3%) and 2002 worst (77.6%). Condition and history still trump the year.
How many miles will a DAYTONA 955I last?
The median DAYTONA 955I shows 14,119 miles at test, and examples around 30k miles still pass 76.5% of the time, so mileage alone rarely decides the result.
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