SUZUKI GSF 650 SAK6 S

656cc Petrol Class 2

#2491 of 5426 overall #305 of 680 SUZUKIs #1561 of 2787 other bikes

85.0%

first-time pass rate

8.7%

failed outright

13,876

median miles at test

1,698

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2010–2025

The GSF 650 SAK6 S's first-time pass rate has fallen 7.1 points since 2010, 89.9% to 82.8%.

Pass rate by mileage

how the GSF 650 SAK6 S's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 650 SAK6 S passes first time 91.4% of the time; by 40k that's 74.5%.

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 SAK6 S

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	65	24.8	0.7×
tyres and wheels	43	16.4	1.1×
lighting and signalling	43	16.4	0.4×
lamps and reflectors	25	9.5	0.8×
steering and suspension	21	8	0.4×
drive system	20	7.6	1.4×
suspension	13	5	0.9×
structure and attachments	11	4.2	0.7×
tyres	11	4.2	0.9×
fuel and exhaust	10	3.8	0.8×

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 SAK6 S 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 SAK6 S.

Pass rate by registration year

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

Best year to buy used: 2006 (89.7% pass). Weakest: 2007 (84.3%).

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 SAK6 S FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 650 SAK6 S reliable?

The SUZUKI GSF 650 SAK6 S is about average for its class: 85.0% of its 1,698 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2491 of 5426 models.

What does a GSF 650 SAK6 S fail its MOT on most?

brakes — 25% of all defects recorded against failed GSF 650 SAK6 S tests.

How many miles will a GSF 650 SAK6 S last?

The median GSF 650 SAK6 S shows 13,876 miles at test, and examples around 40k miles still pass 74.5% of the time — mileage alone rarely kills one.