Triumph
Street Triple
3,621 MOT tests analysed. sits above the UK fleet average — here's where Street Triples pass, fail, and end up on the retest sheet.
That's 10.5 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
88.0%
Pass-after-fix
6.5%
Fail
5.1%
Avg miles
18,453
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
The picture
Street Triple: a strong MOT record by UK norms
Across 2,800 MOT tests, the Street Triple returns 88.1% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is audible warning not working. Tyre tread under the limit and a non-functioning shock absorber round out the top three. Average tested mileage sits at 17,828, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Top ten reasons for rejection.
Filter failures:
Hide categories
Tick a category to hide it from rankings sitewide. Saved in this browser only.
- 01
Tyre tread depth not in accordance with the requirements
24 occurrences · 0.7% of tests
- 02
Number plate does not conform to the specified requirements
23 occurrences · 0.6% of tests
- 03
Reflector missing or reflecting white to the rear
22 occurrences · 0.6% of tests
- 04
A lamp not securely attached
19 occurrences · 0.5% of tests
- 05
Audible warning not working
17 occurrences · 0.5% of tests
- 06
A shock absorber not functioning or leaking severely
14 occurrences · 0.4% of tests
- 07
Brake lining or pad worn below 1.0mm
14 occurrences · 0.4% of tests
- 08
A direction indicator lamp with a multiple light source up to 1/2 not functioning
12 occurrences · 0.3% of tests
- 09
The aim of a headlamp is not within limits laid down in the requirements
12 occurrences · 0.3% of tests
- 10
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
10 occurrences · 0.3% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 2 failures
£75–£130
If every one of this Street Triple's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
Try the calculator
Build your own retest budget.
Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
MOT-spec replacement number plate
Faded or non-standard plates fail outright. Replacements take ten minutes online with V5C details.
Search Amazon UK
My Motor World · affiliate
Parts & supplies for this fix
Affiliate links — small commission, no extra cost to you.
Click Mechanic · affiliate
Book a mobile mechanic
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.
Recall history
12 UK recalls on record.
The Street Triple has 12 official UK vehicle recalls covering defect details, remedies, and affected build dates.
Buying or keeping a Street Triple?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Street Triple and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.