BIKERELIABILITY Reg check
League table/ GAS GAS/EC 300
Model report · 2005–2025

GAS GAS EC 300

299cc Petrol Class 2
#3805 of 5428 overall #9 of 13 GAS GASs #2416 of 2788 other bikes
78.8%
first-time pass rate
12.2%
failed outright
1,372
median miles at test
2,832
MOT tests, 2005–2025
-10.3pp
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 · 2006–2025

The EC 300's first-time pass rate has risen 4.1 points since 2006, 78.0% to 82.1%.

69%78%88%2006: 78.0% pass (118 tests)2007: 82.6% pass (109 tests)2008: 81.8% pass (132 tests)2009: 76.9% pass (156 tests)2010: 74.5% pass (192 tests)2011: 77.1% pass (205 tests)2012: 75.1% pass (213 tests)2013: 77.8% pass (212 tests)2014: 80.1% pass (211 tests)2015: 82.5% pass (189 tests)2016: 77.5% pass (182 tests)2017: 80.8% pass (146 tests)2018: 71.8% pass (110 tests)2019: 79.0% pass (119 tests)2020: 78.1% pass (105 tests)2021: 81.0% pass (121 tests)2022: 83.3% pass (102 tests)2023: 83.3% pass (78 tests)2024: 84.7% pass (59 tests)2025: 82.1% pass (56 tests)20062025

What fails on a EC 300

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
307 31 1.3×
steering and suspension
200 20.2 1.6×
tyres and wheels
119 12 1.4×
brakes
95 9.6 0.6×
reg plates and vin
75 7.6 3.5×
lamps and reflectors
74 7.5 0.9×
suspension
44 4.4 1.6×
drive system
37 3.7 1.2×
audible warning (Horn)
21 2.1 4.1×
structure and attachments
18 1.8 0.7×

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 EC 300 beats 1 of its 4 closest rivals (SUZUKI AN400, YAMAHA RD350, YAMAHA YP250).

SUZUKI AN400 86.2% pass · 27.1k tests Compare head-to-head →
YAMAHA RD350 86.3% pass · 19.6k tests Compare head-to-head →
YAMAHA YP250 82.5% pass · 12.4k tests Compare head-to-head →
YAMAHA WR250F 78.0% pass · 10.5k tests Compare head-to-head →

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 EC 300.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the Ec 300

More GAS GAS models

other GAS GAS bikes ranked by MOT pass rate
GAS GAS EC 250 76.8% pass · 1,865 tests
GAS GAS PAMPERA 83.1% pass · 1,216 tests
GAS GAS EC 200 75.3% pass · 1,102 tests
GAS GAS EC 79.0% pass · 936 tests
GAS GAS PAMPERA 250 80.6% pass · 727 tests
GAS GAS TXT 87.9% pass · 589 tests

See all GAS GAS models →

Pass rate by registration year

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

Best year to buy used: 2012 (82.7% pass). Weakest: 2006 (75.7%).

74%79%84%2000: 79.2% pass (125 tests)2001: 77.5% pass (293 tests)2002: 80.7% pass (399 tests)2003: 79.1% pass (311 tests)2004: 79.7% pass (212 tests)2005: 76.6% pass (380 tests)2006: 75.7% pass (350 tests)2007: 80.4% pass (285 tests)2008: 78.3% pass (129 tests)2009: 82.0% pass (122 tests)2012: 82.7% pass (98 tests)200020052012

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.

GAS GAS EC 300 FAQ

answers computed from the data above · terms in the glossary

Is the GAS GAS EC 300 reliable?

The GAS GAS EC 300 is less reliable than average for its class: 78.8% of its 2,832 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3805 of 5428 models.

What does a EC 300 fail its MOT on most?

lighting and signalling — 31% of all defects recorded against failed EC 300 tests.

What is the best year of EC 300 to buy used?

By first-time pass rate, 2012-registered examples do best (82.7%) and 2006 worst (75.7%). Condition and history still trump the year.

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