SUZUKI GSF 600S K2

600cc Petrol Class 2

#2866 of 5426 overall #360 of 680 SUZUKIs #1809 of 2787 other bikes

83.4%

first-time pass rate

10.7%

failed outright

15,614

median miles at test

698

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2011

The GSF 600S K2's first-time pass rate has fallen 15.2 points since 2006, 92.6% to 77.4%.

Pass rate by mileage

how the GSF 600S K2's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 600S K2 passes first time 92.2% of the time; by 30k that's 78.3%.

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 GSF 600S K2

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	38	23.5	0.9×
lighting and signalling	34	21	0.9×
tyres and wheels	25	15.4	1.4×
drive system	19	11.7	2.8×
steering and suspension	16	9.9	0.6×
lamps and reflectors	10	6.2	0.8×
structure and attachments	7	4.3	1.3×
fuel and exhaust	6	3.7	0.9×
suspension	4	2.5	0.6×
body and structure	3	1.9	0.9×

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 GSF 600S K2 beats 4 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 GSF 600S K2.

Pass rate by registration year

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

Best year to buy used: 2001 (86.2% pass). Weakest: 2002 (82.9%).

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 GSF 600S K2 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 600S K2 reliable?

The SUZUKI GSF 600S K2 is about average for its class: 83.4% of its 698 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2866 of 5426 models.

What does a GSF 600S K2 fail its MOT on most?

brakes — 23% of all defects recorded against failed GSF 600S K2 tests.

What is the best year of GSF 600S K2 to buy used?

By first-time pass rate, 2001-registered examples do best (86.2%) and 2002 worst (82.9%). Condition and history still trump the year.

How many miles will a GSF 600S K2 last?

The median GSF 600S K2 shows 15,614 miles at test, and examples around 30k miles still pass 78.3% of the time — mileage alone rarely kills one.