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

SUZUKI GN250

249cc Petrol Class 2
78.2%
first-time pass rate
12.7%
failed outright
20,964
median miles at test
7,264
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The GN250's first-time pass rate has risen 1.8 points since 2005, 80.2% to 82.0%.

70%79%89%2005: 80.2% pass (177 tests)2006: 73.4% pass (658 tests)2007: 75.6% pass (586 tests)2008: 75.3% pass (554 tests)2009: 73.7% pass (513 tests)2010: 74.9% pass (459 tests)2011: 76.5% pass (442 tests)2012: 75.7% pass (403 tests)2013: 77.1% pass (407 tests)2014: 77.5% pass (387 tests)2015: 79.5% pass (346 tests)2016: 79.5% pass (337 tests)2017: 81.1% pass (318 tests)2018: 84.4% pass (218 tests)2019: 85.0% pass (227 tests)2020: 85.5% pass (179 tests)2021: 85.1% pass (235 tests)2022: 82.5% pass (246 tests)2023: 84.5% pass (232 tests)2024: 85.2% pass (162 tests)2025: 82.0% pass (178 tests)20052025

Pass rate by mileage

how the GN250's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GN250 passes first time 85.0% of the time; by 50k that's 75.4%.

70%79%88%0k: 85.0% pass (1,148 tests)10k: 79.8% pass (2,267 tests)20k: 76.1% pass (1,920 tests)30k: 75.1% pass (1,046 tests)40k: 72.3% pass (466 tests)50k: 75.4% pass (232 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 GN250

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
532 25.4 1.2×
steering and suspension
449 21.4 1.5×
brakes
317 15.1 0.8×
drive system
223 10.6 3.1×
tyres and wheels
219 10.4 1.3×
lamps and reflectors
118 5.6 0.6×
fuel and exhaust
91 4.3 1.4×
body and structure
62 3 1.5×
structure and attachments
49 2.3 0.7×
suspension
36 1.7 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 GN250 beats 1 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 GN250.

Pass rate by registration year

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

Best year to buy used: 1999 (88.1% pass). Weakest: 1993 (73.7%).

71%81%91%1987: 80.1% pass (201 tests)1988: 77.9% pass (240 tests)1989: 79.9% pass (442 tests)1990: 76.4% pass (487 tests)1991: 76.5% pass (739 tests)1992: 76.3% pass (946 tests)1993: 73.7% pass (776 tests)1994: 79.7% pass (942 tests)1995: 78.2% pass (643 tests)1996: 78.3% pass (1,128 tests)1997: 84.6% pass (395 tests)1998: 85.0% pass (100 tests)1999: 88.1% pass (59 tests)198719931999

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 GN250 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GN250 reliable?

The SUZUKI GN250 is less reliable than average for its class: 78.2% of its 7,264 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3881 of 5426 models.

What does a GN250 fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed GN250 tests.

What is the best year of GN250 to buy used?

By first-time pass rate, 1999-registered examples do best (88.1%) and 1993 worst (73.7%). Condition and history still trump the year.

How many miles will a GN250 last?

The median GN250 shows 20,964 miles at test, and examples around 50k miles still pass 75.4% of the time — mileage alone rarely kills one.