Triumph STREET TRIPLE MOT pass rate and common failures

Triumph STREET TRIPLE motorcycles pass the MOT 86.7% of the time, measured across 2,443 tests in the DVSA record. A further 6.1% passed only after a defect was put right at the test station.

About average - within 0.2 points of the 86.87% figure for all motorcycles tested.

Pass rate 86.7% 2,118 of 2,443

Fixed at the station 6.1% passed after an on-the-spot repair

Average mileage at test 18,978 miles

Average age at test 14.79 years old

Engine 676cc MOT class 1 and 2

For sale now 0 Triumph STREET TRIPLE adverts

What to check before the MOT

Built from this model's own failure record, not general advice.

Start with not working - it accounts for 40.9% of failed tests on this model.
Then check missing and does not conform to the specified requirements, the next two most common reasons.
Age matters here: 93.94% of 6-10 year old examples pass, against 87.2% at 16+ years - a gap of 6.7 points.
The most common advisory is noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (7.4% of all tests) - not a failure, but money you will spend sooner or later.
Average recorded mileage at test is 18,978 miles, which is the number to compare any advert against.

Pass rate by age

A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.

Age at test	Pass rate	Tests
6-10 years	93.94%	99
11-15 years	85.98%	1,555
16+ years	87.2%	789

Why the Triumph STREET TRIPLE fails

Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.

#	Item	Of failures	Tests
1	Not working	40.9%	72
2	Missing	38.6%	68
3	Does not conform to the specified requirements	14.8%	26
4	Inoperative in the case of a single lamp or all lamps	13.6%	24
5	Too low	13.6%	24
6	Has a serious fluid leak	11.4%	20
7	Less than 1.0 mm thick	10.2%	18
8	Tread depth is below minimum requirements of 1.0mm	10.2%	18
9	Insecure	9.1%	16
10	Does not illuminate simultaneously with the position lamp(s)	7.4%	13

Most common advisories

Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.

#	Item	Of all tests	Tests
1	Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition	7.4%	180
2	Tread depth is below minimum requirements of 1.0mm	6.2%	151
3	Less than 1.0 mm thick	3.8%	92
4	Excessively loose	2.4%	58
5	Indicates excessive fluctuation of brake effort	2.1%	51
6	Excessively stiff or notchy	1.6%	39
7	Tread not clearly visible	1.4%	34
8	Has a serious fluid leak	1.3%	32
9	Worn to excess	1.3%	32
10	In such a condition that it is seriously weakened	1%	24

Triumph STREET TRIPLE for sale

No Triumph STREET TRIPLE in stock at the moment - 108 other Triumph bikes are advertised.

Used Triumph STREET TRIPLE Used Triumph All Triumph Triumph MOT statistics

Similar bikes compared

Models of comparable capacity, so the comparison means something.

Model	Tests	Pass rate	Avg mileage
Triumph BONNEVILLE 642-904cc · 642-904cc	12,456	90.8%	12,824
Honda CB 397-750cc · 397-750cc	5,400	89.76%	19,444
Honda NC · 741cc	5,311	89.53%	22,765
Suzuki GSF600 · 600cc	4,890	80%	29,308
Honda CBR600F · 599cc	4,710	85.56%	30,651
Kawasaki ZX-6R · 599-636cc	4,510	81.62%	26,019

Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method

Triumph STREET TRIPLE MOT questions

What is the MOT pass rate for the Triumph STREET TRIPLE?+

86.7% of Triumph STREET TRIPLE MOT tests end in a pass, based on 2,443 tests in the DVSA dataset.

What is the most common MOT failure on a Triumph STREET TRIPLE?+

Not working, which appears in 40.9% of failed tests on this model.

Does the Triumph STREET TRIPLE get harder to pass as it ages?+

At 16+ years old the pass rate is 87.2%, against 93.94% for examples 6-10 years old.

Where does this data come from?+

From the DVSA anonymised MOT testing dataset, which records every MOT carried out in England, Scotland and Wales. It is published under the Open Government Licence and covers 2025.

Does a high pass rate mean the bike is reliable?+

Not by itself. The MOT checks safety items - brakes, tyres, lights, structure - and says nothing about engines, gearboxes or electrics. Read it as a maintenance signal, not a reliability score.