SUZUKI GSF 650 K5

656cc Petrol Class 2

#3052 of 5426 overall #393 of 680 SUZUKIs #1940 of 2787 other bikes

82.6%

first-time pass rate

9.7%

failed outright

14,565

median miles at test

4,004

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2025

The GSF 650 K5's first-time pass rate has fallen 4.7 points since 2008, 88.3% to 83.6%.

Pass rate by mileage

how the GSF 650 K5's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 650 K5 passes first time 87.8% of the time; by 50k that's 70.9%.

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 K5

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	160	21.6	0.7×
lighting and signalling	149	20.1	0.6×
tyres and wheels	109	14.7	1.1×
lamps and reflectors	76	10.3	0.8×
drive system	61	8.2	1.6×
steering and suspension	54	7.3	0.4×
fuel and exhaust	37	5	1.0×
suspension	36	4.9	1.0×
structure and attachments	35	4.7	0.8×
tyres	24	3.2	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 K5 beats 2 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 K5.

Pass rate by registration year

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

Best year to buy used: 2007 (84.9% pass). Weakest: 2006 (82.0%).

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 GSF 650 K5 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 650 K5 reliable?

The SUZUKI GSF 650 K5 is less reliable than average for its class: 82.6% of its 4,004 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3052 of 5426 models.

What does a GSF 650 K5 fail its MOT on most?

brakes — 22% of all defects recorded against failed GSF 650 K5 tests.

What is the best year of GSF 650 K5 to buy used?

By first-time pass rate, 2007-registered examples do best (84.9%) and 2006 worst (82.0%). Condition and history still trump the year.

How many miles will a GSF 650 K5 last?

The median GSF 650 K5 shows 14,565 miles at test, and examples around 50k miles still pass 70.9% of the time — mileage alone rarely kills one.