SUZUKI GSF 600 K1

600cc Petrol Class 2

#4095 of 5426 overall #571 of 680 SUZUKIs #2576 of 2787 other bikes

76.7%

first-time pass rate

16.6%

failed outright

13,444

median miles at test

223

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2007

The GSF 600 K1's first-time pass rate has risen 3.1 points since 2006, 81.3% to 84.4%.

Pass rate by mileage

how the GSF 600 K1's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 600 K1 passes first time 84.0% of the time; by 20k that's 66.7%.

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 600 K1

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	31	33.3
lighting and signalling	15	16.1
tyres and wheels	13	14
drive system	8	8.6
fuel and exhaust	8	8.6
steering and suspension	6	6.5
tyres	5	5.4
body and structure	3	3.2
lamps and reflectors	2	2.2
structure and attachments	2	2.2

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the GSF 600 K1 beats 0 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 600 K1.

Pass rate by registration year

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

Best year to buy used: 2002 (82.3% pass). Weakest: 2003 (61.1%).

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.