BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GSF 1250 K9
Model report · 2005–2025

SUZUKI GSF 1250 K9

1255cc Petrol Class 2
87.5%
first-time pass rate
6.5%
failed outright
12,542
median miles at test
2,090
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2025

The GSF 1250 K9's first-time pass rate has held steady since 2012 (86.0% → 85.3%).

80%87%93%2012: 86.0% pass (129 tests)2013: 88.0% pass (184 tests)2014: 91.2% pass (194 tests)2015: 84.3% pass (197 tests)2016: 89.5% pass (190 tests)2017: 88.4% pass (173 tests)2018: 90.2% pass (122 tests)2019: 89.7% pass (126 tests)2020: 85.5% pass (110 tests)2021: 82.3% pass (147 tests)2022: 87.9% pass (140 tests)2023: 85.5% pass (145 tests)2024: 90.7% pass (108 tests)2025: 85.3% pass (116 tests)20122025

Pass rate by mileage

how the GSF 1250 K9's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 1250 K9 passes first time 91.1% of the time; by 40k that's 82.7%.

76%85%94%0k: 91.1% pass (858 tests)10k: 88.5% pass (643 tests)20k: 82.2% pass (366 tests)30k: 78.2% pass (133 tests)40k: 82.7% pass (52 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 1250 K9

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
49 21.9 0.9×
brakes
36 16.1 0.3×
tyres and wheels
31 13.8 0.7×
lighting and signalling
25 11.2 0.2×
tyres
23 10.3 1.5×
suspension
17 7.6 1.0×
steering and suspension
15 6.7 0.2×
structure and attachments
13 5.8 0.8×
Identification of the vehicle
9 4 1.9×
body and structure
6 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 1250 K9 beats 2 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).

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 1250 K9.

Pass rate by registration year

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

Best year to buy used: 2011 (93.4% pass). Weakest: 2008 (84.4%).

83%89%95%2008: 84.4% pass (90 tests)2009: 87.7% pass (1,289 tests)2010: 86.9% pass (650 tests)2011: 93.4% pass (61 tests)200820102011

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 1250 K9 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSF 1250 K9 reliable?

The SUZUKI GSF 1250 K9 is more reliable than average for its class: 87.5% of its 2,090 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1748 of 5426 models.

What does a GSF 1250 K9 fail its MOT on most?

lamps and reflectors — 22% of all defects recorded against failed GSF 1250 K9 tests.

What is the best year of GSF 1250 K9 to buy used?

By first-time pass rate, 2011-registered examples do best (93.4%) and 2008 worst (84.4%). Condition and history still trump the year.

How many miles will a GSF 1250 K9 last?

The median GSF 1250 K9 shows 12,542 miles at test, and examples around 40k miles still pass 82.7% of the time — mileage alone rarely kills one.