BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GSXS 125 AL8
Model report · 2005–2025
81.8%
first-time pass rate
13.1%
failed outright
8,119
median miles at test
1,722
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The GSXS 125 AL8's first-time pass rate has fallen 7.4 points since 2020, 89.2% to 81.8%.

75%84%92%2020: 89.2% pass (65 tests)2021: 82.4% pass (336 tests)2022: 82.7% pass (394 tests)2023: 81.9% pass (371 tests)2024: 77.8% pass (279 tests)2025: 81.8% pass (275 tests)20202025

Pass rate by mileage

how the GSXS 125 AL8's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GSXS 125 AL8 passes first time 87.2% of the time; by 30k that's 71.7%.

69%79%90%0k: 87.2% pass (1,014 tests)10k: 74.9% pass (475 tests)20k: 72.5% pass (160 tests)30k: 71.7% pass (46 tests)0k20k30k

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 GSXS 125 AL8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
160 30.5 1.5×
structure and attachments
102 19.4 6.6×
lamps and reflectors
96 18.3 2.7×
tyres
66 12.6 4.4×
steering
58 11 6.6×
suspension
28 5.3 2.0×
audible warning (Horn)
8 1.5 2.5×
Identification of the vehicle
4 0.8 1.0×
wheels
3 0.6 1.9×

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 GSXS 125 AL8 beats 1 of its 1 closest rivals (HONDA CB125F).

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 GSXS 125 AL8.

Pass rate by registration year

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

Best year to buy used: 2019 (85.7% pass). Weakest: 2017 (78.8%).

77%82%87%2017: 78.8% pass (439 tests)2018: 82.6% pass (1,021 tests)2019: 85.7% pass (237 tests)201720182019

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 GSXS 125 AL8 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSXS 125 AL8 reliable?

The SUZUKI GSXS 125 AL8 is more reliable than average for its class: 81.8% of its 1,722 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3219 of 5426 models.

What does a GSXS 125 AL8 fail its MOT on most?

brakes — 30% of all defects recorded against failed GSXS 125 AL8 tests.

What is the best year of GSXS 125 AL8 to buy used?

By first-time pass rate, 2019-registered examples do best (85.7%) and 2017 worst (78.8%). Condition and history still trump the year.

How many miles will a GSXS 125 AL8 last?

The median GSXS 125 AL8 shows 8,119 miles at test, and examples around 30k miles still pass 71.7% of the time — mileage alone rarely kills one.