BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
88.9%
first-time pass rate
6.2%
failed outright
12,382
median miles at test
1,391
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2025

The GTS300's first-time pass rate has risen 3.3 points since 2012, 86.4% to 89.7%.

83%89%95%2012: 86.4% pass (59 tests)2013: 90.4% pass (104 tests)2014: 87.8% pass (139 tests)2015: 90.1% pass (142 tests)2016: 87.7% pass (130 tests)2017: 87.8% pass (123 tests)2018: 88.2% pass (85 tests)2019: 88.2% pass (93 tests)2020: 89.6% pass (67 tests)2021: 90.3% pass (93 tests)2022: 87.0% pass (92 tests)2023: 92.9% pass (85 tests)2024: 85.3% pass (75 tests)2025: 89.7% pass (78 tests)20122025

Pass rate by mileage

how the GTS300's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GTS300 passes first time 91.5% of the time; by 40k that's 78.0%.

75%85%94%0k: 91.5% pass (543 tests)10k: 89.2% pass (498 tests)20k: 87.3% pass (220 tests)30k: 84.7% pass (72 tests)40k: 78.0% pass (41 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 GTS300

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
tyres and wheels
32 23 1.0×
brakes
22 15.8 0.3×
lighting and signalling
20 14.4 0.3×
tyres
16 11.5 1.6×
fuel and exhaust
13 9.4 1.1×
lamps and reflectors
13 9.4 0.5×
steering and suspension
10 7.2 0.2×
structure and attachments
7 5 0.7×
Identification of the vehicle
3 2.2 0.9×
steering
3 2.2 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 GTS300 beats 3 of its 4 closest rivals (PIAGGIO PX 200 E, PIAGGIO X9, LAMBRETTA GP200).

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 GTS300.

Pass rate by registration year

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

Best year to buy used: 2012 (91.2% pass). Weakest: 2009 (87.6%).

87%89%92%2008: 89.6% pass (240 tests)2009: 87.6% pass (330 tests)2010: 88.0% pass (407 tests)2011: 91.1% pass (259 tests)2012: 91.2% pass (91 tests)200820102012

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.

PIAGGIO GTS300 FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO GTS300 reliable?

The PIAGGIO GTS300 is more reliable than average for its class: 88.9% of its 1,391 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1303 of 5426 models.

What does a GTS300 fail its MOT on most?

tyres and wheels — 23% of all defects recorded against failed GTS300 tests.

What is the best year of GTS300 to buy used?

By first-time pass rate, 2012-registered examples do best (91.2%) and 2009 worst (87.6%). Condition and history still trump the year.

How many miles will a GTS300 last?

The median GTS300 shows 12,382 miles at test, and examples around 40k miles still pass 78.0% of the time — mileage alone rarely kills one.