BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GSX 650 FK8
Model report · 2005–2025

SUZUKI GSX 650 FK8

644cc Petrol Class 2
87.6%
first-time pass rate
6.7%
failed outright
13,427
median miles at test
7,404
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2025

The GSX 650 FK8's first-time pass rate has fallen 5.1 points since 2011, 89.7% to 84.6%.

83%87%91%2011: 89.7% pass (506 tests)2012: 89.4% pass (690 tests)2013: 88.7% pass (690 tests)2014: 89.1% pass (641 tests)2015: 87.8% pass (637 tests)2016: 88.1% pass (613 tests)2017: 87.3% pass (557 tests)2018: 88.8% pass (430 tests)2019: 85.2% pass (412 tests)2020: 86.9% pass (350 tests)2021: 87.2% pass (421 tests)2022: 85.6% pass (425 tests)2023: 86.3% pass (394 tests)2024: 84.4% pass (289 tests)2025: 84.6% pass (324 tests)20112025

Pass rate by mileage

how the GSX 650 FK8's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSX 650 FK8 passes first time 92.6% of the time; by 50k that's 85.3%.

74%85%96%0k: 92.6% pass (2,652 tests)10k: 88.5% pass (2,536 tests)20k: 82.6% pass (1,287 tests)30k: 77.7% pass (533 tests)40k: 76.9% pass (186 tests)50k: 85.3% pass (75 tests)0k30k50k

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 GSX 650 FK8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
211 24.7 0.5×
tyres and wheels
147 17.2 0.9×
lamps and reflectors
134 15.7 0.7×
lighting and signalling
110 12.9 0.3×
structure and attachments
58 6.8 1.0×
tyres
53 6.2 0.9×
drive system
49 5.7 0.7×
suspension
43 5 0.8×
steering and suspension
35 4.1 0.1×
steering
15 1.8 0.4×

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 GSX 650 FK8 beats 4 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 GSX 650 FK8.

Pass rate by registration year

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

Best year to buy used: 2008 (87.7% pass). Weakest: 2010 (84.0%).

83%86%89%2007: 84.8% pass (244 tests)2008: 87.7% pass (5,161 tests)2009: 87.7% pass (1,892 tests)2010: 84.0% pass (94 tests)200720092010

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 GSX 650 FK8 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSX 650 FK8 reliable?

The SUZUKI GSX 650 FK8 is more reliable than average for its class: 87.6% of its 7,404 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1722 of 5426 models.

What does a GSX 650 FK8 fail its MOT on most?

brakes — 25% of all defects recorded against failed GSX 650 FK8 tests.

What is the best year of GSX 650 FK8 to buy used?

By first-time pass rate, 2009-registered examples do best (87.7%) and 2010 worst (84.0%). Condition and history still trump the year.

How many miles will a GSX 650 FK8 last?

The median GSX 650 FK8 shows 13,427 miles at test, and examples around 50k miles still pass 85.3% of the time — mileage alone rarely kills one.