BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GSF 650 SAK5
Model report · 2005–2025

SUZUKI GSF 650 SAK5

656cc Petrol Class 2
86.0%
first-time pass rate
8.6%
failed outright
14,618
median miles at test
952
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2023

The GSF 650 SAK5's first-time pass rate has fallen 1.3 points since 2008, 96.9% to 95.6%.

69%85%100%2008: 96.9% pass (64 tests)2009: 92.1% pass (76 tests)2010: 89.0% pass (73 tests)2011: 86.2% pass (65 tests)2012: 93.7% pass (63 tests)2013: 88.4% pass (69 tests)2014: 81.8% pass (66 tests)2015: 87.5% pass (64 tests)2016: 76.6% pass (64 tests)2017: 74.6% pass (59 tests)2018: 79.1% pass (43 tests)2019: 80.0% pass (35 tests)2020: 87.5% pass (32 tests)2021: 81.4% pass (43 tests)2022: 82.9% pass (41 tests)2023: 95.6% pass (45 tests)20082023

Pass rate by mileage

how the GSF 650 SAK5's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 650 SAK5 passes first time 94.0% of the time; by 40k that's 73.3%.

69%84%98%0k: 94.0% pass (284 tests)10k: 86.7% pass (368 tests)20k: 80.9% pass (188 tests)30k: 76.1% pass (46 tests)40k: 73.3% pass (30 tests)0k20k40k

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 SAK5

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
35 23.8 0.6×
lighting and signalling
26 17.7 0.5×
steering and suspension
21 14.3 0.6×
tyres and wheels
20 13.6 1.0×
lamps and reflectors
15 10.2 0.6×
drive system
8 5.4 1.2×
suspension
7 4.8 0.9×
tyres
6 4.1 0.6×
fuel and exhaust
5 3.4 0.7×
structure and attachments
4 2.7 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 GSF 650 SAK5 beats 3 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 SAK5.

Pass rate by registration year

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

Best year to buy used: 2006 (88.7% pass). Weakest: 2005 (85.6%).

85%87%90%2005: 85.6% pass (792 tests)2006: 88.7% pass (133 tests)20052006

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 SAK5 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 650 SAK5 reliable?

The SUZUKI GSF 650 SAK5 is about average for its class: 86.0% of its 952 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2196 of 5426 models.

What does a GSF 650 SAK5 fail its MOT on most?

brakes — 24% of all defects recorded against failed GSF 650 SAK5 tests.

How many miles will a GSF 650 SAK5 last?

The median GSF 650 SAK5 shows 14,618 miles at test, and examples around 40k miles still pass 73.3% of the time — mileage alone rarely kills one.