SUZUKI GSF 650 SA K6

656cc Petrol Class 2

#2835 of 5426 overall #354 of 680 SUZUKIs #1790 of 2787 other bikes

83.6%

first-time pass rate

9.4%

failed outright

15,546

median miles at test

4,971

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2009–2025

The GSF 650 SA K6's first-time pass rate has fallen 5.6 points since 2009, 88.2% to 82.6%.

Pass rate by mileage

how the GSF 650 SA K6's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 650 SA K6 passes first time 90.8% of the time; by 50k that's 68.1%.

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 650 SA K6

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	235	25.6	0.8×
lighting and signalling	125	13.6	0.5×
tyres and wheels	117	12.7	1.0×
lamps and reflectors	112	12.2	1.0×
steering and suspension	75	8.2	0.4×
drive system	69	7.5	1.3×
structure and attachments	50	5.4	1.1×
suspension	48	5.2	1.1×
fuel and exhaust	47	5.1	1.1×
tyres	40	4.4	1.0×

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 650 SA K6 beats 3 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 HONDA VFR800 FI 86.7% pass · 89.4k 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 650 SA K6.

Pass rate by registration year

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

Best year to buy used: 2006 (84.3% pass). Weakest: 2007 (81.6%).

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 650 SA K6 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 650 SA K6 reliable?

The SUZUKI GSF 650 SA K6 is about average for its class: 83.6% of its 4,971 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2835 of 5426 models.

What does a GSF 650 SA K6 fail its MOT on most?

brakes — 26% of all defects recorded against failed GSF 650 SA K6 tests.

What is the best year of GSF 650 SA K6 to buy used?

By first-time pass rate, 2006-registered examples do best (84.3%) and 2007 worst (81.6%). Condition and history still trump the year.

How many miles will a GSF 650 SA K6 last?

The median GSF 650 SA K6 shows 15,546 miles at test, and examples around 50k miles still pass 68.1% of the time — mileage alone rarely kills one.