BIKERELIABILITY Reg check
League table/ SUZUKI/GSX1250
Model report · 2005–2025

Data as of: DVSA MOT results to 2025

SUZUKI GSX1250

1250cc Petrol Class 2
88.9%
first-time pass rate
6.1%
failed outright
13,718
median miles at test
1,081
MOT tests, 2005–2025
+3.5pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

first-time pass rate by test year · 2013–2025

The GSX1250's first-time pass rate has fallen 3.8 points since 2013, 91.3% to 87.5%.

84%89%94%2013: 91.3% pass (46 tests)2014: 90.2% pass (92 tests)2015: 89.6% pass (106 tests)2016: 85.8% pass (106 tests)2017: 88.1% pass (101 tests)2018: 89.3% pass (84 tests)2019: 92.3% pass (78 tests)2020: 85.5% pass (76 tests)2021: 92.3% pass (91 tests)2022: 87.2% pass (86 tests)2023: 90.6% pass (85 tests)2024: 85.9% pass (64 tests)2025: 87.5% pass (64 tests)20132025

Pass rate by mileage

how the GSX1250's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSX1250 passes first time 93.1% of the time; by 40k that's 90.7%.

78%87%96%0k: 93.1% pass (389 tests)10k: 90.7% pass (345 tests)20k: 80.7% pass (181 tests)30k: 84.4% pass (90 tests)40k: 90.7% pass (43 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 GSX1250

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
35 31 0.6×
lamps and reflectors
19 16.8 0.9×
tyres and wheels
18 15.9 0.8×
lighting and signalling
16 14.2 0.2×
suspension
7 6.2 0.9×
tyres
6 5.3 0.8×
structure and attachments
4 3.5 0.5×
steering and suspension
4 3.5 0.1×
drive system
3 2.7 0.4×
steering
1 0.9 0.2×

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 GSX1250 beats 3 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 GSX1250.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the GSX1250

Pass rate by registration year

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

Highest pass rate: 2012 (94.1%). Lowest: 2010 (86.5%). Every GSX1250 year compared →

85%90%96%2010: 86.5% pass (488 tests)2011: 90.1% pass (365 tests)2012: 94.1% pass (186 tests)201020112012

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 GSX1250 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSX1250 reliable?

The SUZUKI GSX1250 is more reliable than average for its class: 88.9% of its 1,081 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1305 of 5428 models.

What does a GSX1250 fail its MOT on most?

brakes: 31% of all defects recorded against failed GSX1250 tests.

What is the best year of GSX1250 to buy used?

By first-time pass rate, 2012-registered examples do best (94.1%) and 2010 worst (86.5%). Condition and history still trump the year.

How many miles will a GSX1250 last?

The median GSX1250 shows 13,718 miles at test, and examples around 40k miles still pass 90.7% of the time, so mileage alone rarely decides the result.

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