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

SUZUKI GT185

184cc Petrol Class 1
83.3%
first-time pass rate
6.6%
failed outright
15,503
median miles at test
830
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The GT185's first-time pass rate has fallen 2.0 points since 2006, 87.7% to 85.7%.

71%85%100%2006: 87.7% pass (57 tests)2007: 94.9% pass (39 tests)2008: 87.2% pass (39 tests)2009: 75.5% pass (53 tests)2010: 87.0% pass (46 tests)2011: 81.4% pass (59 tests)2012: 79.2% pass (72 tests)2013: 76.4% pass (72 tests)2014: 83.3% pass (84 tests)2015: 79.7% pass (79 tests)2016: 84.3% pass (70 tests)2017: 85.7% pass (63 tests)20062017

Pass rate by mileage

how the GT185's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GT185 passes first time 90.9% of the time; by 30k that's 87.3%.

74%84%94%0k: 90.9% pass (243 tests)10k: 77.0% pass (305 tests)20k: 79.3% pass (169 tests)30k: 87.3% pass (79 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 GT185

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
37 30.6 0.7×
steering and suspension
30 24.8 0.9×
brakes
20 16.5 0.5×
drive system
10 8.3 1.3×
tyres and wheels
9 7.4 0.5×
body and structure
5 4.1 1.3×
reg plates and vin
4 3.3 0.4×
fuel and exhaust
3 2.5 0.5×
lamps and reflectors
2 1.7 0.1×
steering
1 0.8 0.3×

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 GT185 beats 1 of its 2 closest rivals (BSA BANTAM, HONDA CB TWO FIFTY).

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 GT185.

Pass rate by registration year

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

Best year to buy used: 1978 (85.2% pass). Weakest: 1975 (80.6%).

80%83%86%1973: 82.4% pass (68 tests)1975: 80.6% pass (72 tests)1976: 81.9% pass (116 tests)1977: 84.8% pass (164 tests)1978: 85.2% pass (122 tests)1979: 81.2% pass (149 tests)197319771979

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 GT185 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GT185 reliable?

The SUZUKI GT185 is more reliable than average for its class: 83.3% of its 830 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #2893 of 5426 models.

What does a GT185 fail its MOT on most?

lighting and signalling — 31% of all defects recorded against failed GT185 tests.

What is the best year of GT185 to buy used?

By first-time pass rate, 1978-registered examples do best (85.2%) and 1975 worst (80.6%). Condition and history still trump the year.

How many miles will a GT185 last?

The median GT185 shows 15,503 miles at test, and examples around 30k miles still pass 87.3% of the time — mileage alone rarely kills one.