BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

SUZUKI GS250

249cc Petrol Class 2
74.5%
first-time pass rate
15.8%
failed outright
25,230
median miles at test
958
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2019

The GS250's first-time pass rate has risen 5.0 points since 2005, 65.6% to 70.6%.

58%73%88%2005: 65.6% pass (32 tests)2006: 75.3% pass (97 tests)2007: 74.2% pass (93 tests)2008: 71.1% pass (90 tests)2009: 72.3% pass (83 tests)2010: 63.0% pass (73 tests)2011: 80.0% pass (65 tests)2012: 76.2% pass (63 tests)2013: 76.5% pass (51 tests)2014: 78.8% pass (52 tests)2015: 77.8% pass (45 tests)2016: 82.9% pass (41 tests)2017: 75.6% pass (41 tests)2019: 70.6% pass (34 tests)20052019

Pass rate by mileage

how the GS250's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GS250 passes first time 77.3% of the time; by 50k that's 70.5%.

69%74%79%0k: 77.3% pass (88 tests)10k: 74.6% pass (268 tests)20k: 77.9% pass (226 tests)30k: 71.5% pass (193 tests)40k: 75.0% pass (92 tests)50k: 70.5% pass (44 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 GS250

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
118 26.3 1.9×
steering and suspension
116 25.8 2.5×
brakes
69 15.4 1.3×
drive system
48 10.7 5.1×
tyres and wheels
46 10.2 1.9×
fuel and exhaust
18 4 2.2×
body and structure
11 2.4 2.0×
lamps and reflectors
11 2.4 0.4×
driving controls
8 1.8 2.7×
structure and attachments
4 0.9 0.5×

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 GS250 beats 0 of its 4 closest rivals (YAMAHA YP250, YAMAHA WR250F, HONDA XR250).

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 GS250.

Pass rate by registration year

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

Best year to buy used: 1982 (82.9% pass). Weakest: 1983 (66.0%).

63%74%86%1980: 73.4% pass (248 tests)1981: 75.0% pass (396 tests)1982: 82.9% pass (70 tests)1983: 66.0% pass (97 tests)1984: 74.7% pass (75 tests)198019821984

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 GS250 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GS250 reliable?

The SUZUKI GS250 is less reliable than average for its class: 74.5% of its 958 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4354 of 5426 models.

What does a GS250 fail its MOT on most?

lighting and signalling — 26% of all defects recorded against failed GS250 tests.

What is the best year of GS250 to buy used?

By first-time pass rate, 1982-registered examples do best (82.9%) and 1983 worst (66.0%). Condition and history still trump the year.

How many miles will a GS250 last?

The median GS250 shows 25,230 miles at test, and examples around 50k miles still pass 70.5% of the time — mileage alone rarely kills one.