BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
86.7%
first-time pass rate
7.2%
failed outright
12,706
median miles at test
806
MOT tests, 2005–2025

Pass rate over time

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

The GTS's first-time pass rate has held steady since 2012 (88.7% → 88.9%).

70%85%100%2012: 88.7% pass (53 tests)2013: 84.4% pass (64 tests)2014: 76.3% pass (76 tests)2015: 86.7% pass (83 tests)2016: 90.1% pass (71 tests)2017: 86.6% pass (67 tests)2018: 76.5% pass (51 tests)2019: 82.2% pass (45 tests)2020: 86.5% pass (37 tests)2021: 94.1% pass (51 tests)2022: 90.2% pass (51 tests)2023: 100.0% pass (39 tests)2024: 94.7% pass (38 tests)2025: 88.9% pass (36 tests)20122025

Pass rate by mileage

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

A low-mileage GTS passes first time 88.4% of the time; by 30k that's 88.9%.

79%85%91%0k: 88.4% pass (327 tests)10k: 87.2% pass (266 tests)20k: 80.8% pass (130 tests)30k: 88.9% pass (45 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 GTS

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
16 18.6 0.4×
tyres and wheels
15 17.4 0.8×
steering and suspension
11 12.8 0.4×
lamps and reflectors
11 12.8 0.9×
lighting and signalling
10 11.6 0.3×
tyres
7 8.1 1.3×
structure and attachments
6 7 1.1×
body and structure
5 5.8 1.3×
reg plates and vin
3 3.5 0.4×
steering
2 2.3 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 GTS beats 1 of its 3 closest rivals (PIAGGIO X9, HONDA Forza 300/350, PIAGGIO VESPA GTS 300 SUPER).

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 GTS.

Pass rate by registration year

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

Best year to buy used: 2011 (92.6% pass). Weakest: 2008 (81.2%).

79%87%95%2006: 86.6% pass (67 tests)2008: 81.2% pass (133 tests)2009: 89.5% pass (219 tests)2010: 83.1% pass (118 tests)2011: 92.6% pass (122 tests)2012: 84.0% pass (75 tests)200620102012

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 GTS FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO GTS reliable?

The PIAGGIO GTS is about average for its class: 86.7% of its 806 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1986 of 5426 models.

What does a GTS fail its MOT on most?

brakes — 19% of all defects recorded against failed GTS tests.

What is the best year of GTS to buy used?

By first-time pass rate, 2011-registered examples do best (92.6%) and 2008 worst (81.2%). Condition and history still trump the year.

How many miles will a GTS last?

The median GTS shows 12,706 miles at test, and examples around 30k miles still pass 88.9% of the time — mileage alone rarely kills one.