SUZUKI GSF600S

599cc Petrol Class 2

#3854 of 5426 overall #534 of 680 SUZUKIs #2443 of 2787 other bikes

78.4%

first-time pass rate

13.6%

failed outright

19,671

median miles at test

66.9k

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2020

The GSF600S's first-time pass rate has fallen 6.1 points since 2005, 84.1% to 78.0%.

Pass rate by mileage

how the GSF600S's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF600S passes first time 87.7% of the time; by 50k that's 68.6%.

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 GSF600S

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	5,667	28.4	1.4×
lighting and signalling	5,241	26.3	1.3×
steering and suspension	2,515	12.6	1.0×
tyres and wheels	2,441	12.2	1.6×
drive system	1,331	6.7	2.1×
fuel and exhaust	1,046	5.2	1.8×
lamps and reflectors	604	3	0.4×
body and structure	461	2.3	1.3×
reg plates and vin	380	1.9	0.8×
structure and attachments	264	1.3	0.4×

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 GSF600S beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

KAWASAKI ZX-6R 78.1% pass · 174k tests SUZUKI GSF600 77.3% pass · 143k tests YAMAHA FZS600 82.6% pass · 137k tests SUZUKI SV650S 80.6% pass · 84.6k 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 GSF600S.

Pass rate by registration year

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

Best year to buy used: 2006 (88.9% pass). Weakest: 1995 (72.9%).

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.

SUZUKI GSF600S FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF600S reliable?

The SUZUKI GSF600S is less reliable than average for its class: 78.4% of its 66,871 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3854 of 5426 models.

What does a GSF600S fail its MOT on most?

brakes — 28% of all defects recorded against failed GSF600S tests.

What is the best year of GSF600S to buy used?

By first-time pass rate, 2006-registered examples do best (88.9%) and 1995 worst (72.9%). Condition and history still trump the year.

How many miles will a GSF600S last?

The median GSF600S shows 19,671 miles at test, and examples around 50k miles still pass 68.6% of the time — mileage alone rarely kills one.