TRIUMPH ROCKET

2294cc Petrol Class 2

#746 of 5426 overall #58 of 175 TRIUMPHs #136 of 465 cruiser bikes

90.7%

first-time pass rate

4.6%

failed outright

9,851

median miles at test

3,444

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2025

The ROCKET's first-time pass rate has fallen 4.9 points since 2015, 96.7% to 91.8%.

Pass rate by mileage

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

A low-mileage ROCKET passes first time 92.0% of the time; by 40k that's 81.8%.

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 ROCKET

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lamps and reflectors	79	31	1.1×
tyres	66	25.9	2.4×
brakes	39	15.3	0.2×
Identification of the vehicle	16	6.3	2.0×
tyres and wheels	16	6.3	0.1×
reg plates and vin	10	3.9	0.4×
audible warning (Horn)	10	3.9	1.6×
structure and attachments	7	2.7	0.3×
lighting and signalling	6	2.4	—
suspension	6	2.4	0.2×

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 ROCKET beats 3 of its 3 closest rivals (TRIUMPH ROCKET III, HARLEY-DAVIDSON FXSB, TRIUMPH ROCKET 111).

TRIUMPH ROCKET III 88.3% pass · 15.5k tests HARLEY-DAVIDSON FXSB 89.3% pass · 6,915 tests TRIUMPH ROCKET 111 88.4% pass · 6,812 tests

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 ROCKET.

Pass rate by registration year

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

Best year to buy used: 2010 (94.2% pass). Weakest: 2017 (85.0%).

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 ROCKET FAQ

answers computed from the data above · terms in the glossary

Is the TRIUMPH ROCKET reliable?

The TRIUMPH ROCKET is more reliable than average for its class: 90.7% of its 3,444 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #746 of 5426 models.

What does a ROCKET fail its MOT on most?

lamps and reflectors — 31% of all defects recorded against failed ROCKET tests.

What is the best year of ROCKET to buy used?

By first-time pass rate, 2010-registered examples do best (94.2%) and 2017 worst (85.0%). Condition and history still trump the year.

How many miles will a ROCKET last?

The median ROCKET shows 9,851 miles at test, and examples around 40k miles still pass 81.8% of the time — mileage alone rarely kills one.