The picture
Cbr 600 Fa-B: a strong MOT record by UK norms
Across 468 MOT tests, the Cbr 600 Fa-B returns 87.6% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a non-conforming number plate. Tyre tread under the limit and brake pads worn below 1.0 mm round out the top three. Average tested mileage sits at 21,101, 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.
- 01
Number plate does not conform to the specified requirements
10 occurrences · 2.1% of tests
- 02
Tyre tread depth not in accordance with the requirements
8 occurrences · 1.7% of tests
- 03
Brake lining or pad worn below 1.0mm
6 occurrences · 1.3% of tests
- 04
Reflector missing or reflecting white to the rear
5 occurrences · 1.1% of tests
- 05
Brake efficiency below minimum requirement
4 occurrences · 0.9% of tests
- 06
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
4 occurrences · 0.9% of tests
- 07
A lamp not securely attached
4 occurrences · 0.9% of tests
- 08
Rear registration plate lamp does not illuminate simultaneously with the position lamps
3 occurrences · 0.6% of tests
- 09
The aim of a headlamp is not within limits laid down in the requirements
2 occurrences · 0.4% of tests
- 10
A rear registration plate lamp throwing direct white light to the rear
2 occurrences · 0.4% 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 3 failures
£155–£290
If every one of this Cbr 600 FA B'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 →
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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
MOT-spec replacement number plate
Faded or non-standard plates fail outright. Replacements take ten minutes online with V5C details.
Search Amazon UK
Item 02 · 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 03 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Buying or keeping a Cbr 600 FA B?
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 Cbr 600 FA B 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.