The picture

Gsx750: above-average pass rates, with caveats

Across 1,383 MOT tests, the Gsx750 returns 83.7% first-time pass — above the UK fleet average. The single most-logged Major fail is rate of flashing not between 60. A non-functioning shock absorber and a binding brake round out the top three. Average tested mileage sits at 29,700, 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.

ABI Insurance Group

Group 4–22

Below the fleet average — generally reasonable to insure. Lower groups cost less to insure; UK fleet average is around Group 22.

Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →

4–22

out of 50

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Top ten reasons for rejection.

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01

A shock absorber not functioning or leaking severely

34 occurrences · 1.6% of tests
02

Tyre tread depth not in accordance with the requirements

28 occurrences · 1.3% of tests
03

Significant brake effort recorded with no brake applied indicating a binding brake

21 occurrences · 1.0% of tests
04

Brake efficiency below minimum requirement

13 occurrences · 0.6% of tests
05

Rate of flashing not between 60 and 120 times per minute

13 occurrences · 0.6% of tests
06

Brake lining or pad worn below 1.0mm

11 occurrences · 0.5% of tests
07

On a motorcycle with two front or rear wheels, there is no recorded brake effort at a wheel

10 occurrences · 0.5% of tests
08

A stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released

9 occurrences · 0.4% of tests
09

Brake disc or drum significantly and obviously worn

8 occurrences · 0.4% of tests
10

Stop lamp with a multiple light source up to 1/2 not functioning

8 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.

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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.

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Parts & supplies for this fix

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Buying or keeping a Gsx750?

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 Gsx750 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.