SUZUKI GSF650S

656cc Petrol Class 2

#2362 of 5426 overall #291 of 680 SUZUKIs #1477 of 2787 other bikes

85.5%

first-time pass rate

8.6%

failed outright

13,302

median miles at test

9,579

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2020

The GSF650S's first-time pass rate has fallen 3.1 points since 2008, 88.1% to 85.0%.

Pass rate by mileage

how the GSF650S's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF650S passes first time 90.9% of the time; by 50k 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 GSF650S

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	416	26.9	0.8×
tyres and wheels	289	18.7	1.3×
lighting and signalling	279	18	0.6×
steering and suspension	175	11.3	0.5×
drive system	128	8.3	1.3×
lamps and reflectors	87	5.6	0.4×
fuel and exhaust	62	4	0.7×
tyres	43	2.8	0.6×
structure and attachments	37	2.4	0.4×
body and structure	30	1.9	0.6×

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 GSF650S 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 GSF650S.

Pass rate by registration year

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

Best year to buy used: 2011 (89.0% pass). Weakest: 2006 (84.0%).

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 GSF650S FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF650S reliable?

The SUZUKI GSF650S is about average for its class: 85.5% of its 9,579 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2362 of 5426 models.

What does a GSF650S fail its MOT on most?

brakes — 27% of all defects recorded against failed GSF650S tests.

What is the best year of GSF650S to buy used?

By first-time pass rate, 2011-registered examples do best (89.0%) and 2006 worst (84.0%). Condition and history still trump the year.

How many miles will a GSF650S last?

The median GSF650S shows 13,302 miles at test, and examples around 50k miles still pass 66.7% of the time — mileage alone rarely kills one.