BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

TRIUMPH DAYTONA

955cc Petrol Class 2
TRIUMPH DAYTONA
Photo: Philafrenzy · CC BY-SA 4.0
83.6%
first-time pass rate
9.4%
failed outright
15,798
median miles at test
113k
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The DAYTONA's first-time pass rate has risen 2.2 points since 2005, 83.7% to 85.9%.

81%84%87%2005: 83.7% pass (817 tests)2006: 85.1% pass (5,187 tests)2007: 83.8% pass (5,739 tests)2008: 81.8% pass (6,074 tests)2009: 82.0% pass (7,055 tests)2010: 81.8% pass (7,097 tests)2011: 82.3% pass (7,191 tests)2012: 82.1% pass (7,164 tests)2013: 82.3% pass (7,064 tests)2014: 82.9% pass (6,990 tests)2015: 84.5% pass (6,618 tests)2016: 83.9% pass (6,519 tests)2017: 84.7% pass (6,238 tests)2018: 84.2% pass (4,639 tests)2019: 85.1% pass (4,672 tests)2020: 85.6% pass (3,732 tests)2021: 84.6% pass (4,945 tests)2022: 85.9% pass (4,625 tests)2023: 84.9% pass (4,311 tests)2024: 84.7% pass (3,184 tests)2025: 85.9% pass (3,284 tests)20052025

Pass rate by mileage

how the DAYTONA's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage DAYTONA passes first time 88.3% of the time; by 50k that's 77.7%.

76%83%90%0k: 88.3% pass (31,495 tests)10k: 83.8% pass (40,045 tests)20k: 80.9% pass (23,920 tests)30k: 79.4% pass (10,751 tests)40k: 78.6% pass (4,170 tests)50k: 77.7% pass (1,448 tests)0k30k50k

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

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
5,053 25.3 0.7×
brakes
4,711 23.6 0.8×
steering and suspension
2,974 14.9 0.7×
tyres and wheels
1,957 9.8 0.8×
lamps and reflectors
1,920 9.6 0.7×
reg plates and vin
755 3.8 0.9×
fuel and exhaust
736 3.7 0.8×
drive system
652 3.3 0.7×
suspension
642 3.2 0.7×
structure and attachments
537 2.7 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

same type, similar capacity, high test volume

On first-time pass rate the DAYTONA beats 2 of its 4 closest rivals (YAMAHA YZF-R1, HONDA CBR900RR, HONDA CBR1100XX).

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.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1967 (93.9% pass). Weakest: 1993 (79.3%).

76%87%97%1967: 93.9% pass (131 tests)1968: 89.2% pass (222 tests)1969: 89.1% pass (239 tests)1970: 87.1% pass (271 tests)1971: 90.7% pass (503 tests)1972: 91.4% pass (291 tests)1973: 91.2% pass (148 tests)1975: 84.8% pass (79 tests)1976: 92.0% pass (100 tests)1991: 80.7% pass (456 tests)1992: 79.8% pass (560 tests)1993: 79.3% pass (1,843 tests)1994: 83.7% pass (2,415 tests)1995: 84.8% pass (2,184 tests)1996: 82.5% pass (1,693 tests)1997: 80.9% pass (10,406 tests)1998: 81.1% pass (8,019 tests)1999: 82.3% pass (8,070 tests)2000: 81.0% pass (5,435 tests)2001: 83.9% pass (4,799 tests)2002: 83.9% pass (5,114 tests)2003: 82.9% pass (8,142 tests)2004: 82.6% pass (10,489 tests)2005: 84.2% pass (7,657 tests)2006: 84.9% pass (10,966 tests)2007: 85.8% pass (4,626 tests)2008: 86.8% pass (2,772 tests)2009: 85.7% pass (4,161 tests)2010: 87.7% pass (2,595 tests)2011: 86.4% pass (1,785 tests)2012: 86.1% pass (941 tests)2013: 87.5% pass (2,004 tests)2014: 86.9% pass (1,584 tests)2015: 87.8% pass (1,191 tests)2016: 87.5% pass (888 tests)2017: 91.2% pass (181 tests)196720002017

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 FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH DAYTONA reliable?

The TRIUMPH DAYTONA is about average for its class: 83.6% of its 113,145 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2835 of 5426 models.

What does a DAYTONA fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed DAYTONA tests.

What is the best year of DAYTONA to buy used?

By first-time pass rate, 1967-registered examples do best (93.9%) and 1993 worst (79.3%). Condition and history still trump the year.

How many miles will a DAYTONA last?

The median DAYTONA shows 15,798 miles at test, and examples around 50k miles still pass 77.7% of the time — mileage alone rarely kills one.