BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ GILERA/SMT
Model report · 2005–2025

GILERA SMT

49cc Petrol Class 1
#5365 of 5426 overall #27 of 28 GILERAs #426 of 455 moped bikes
52.7%
first-time pass rate
34.4%
failed outright
12,700
median miles at test
1,352
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2007–2018

The SMT's first-time pass rate has fallen 20.6 points since 2007, 60.0% to 39.4%.

34%50%65%2007: 60.0% pass (80 tests)2008: 55.5% pass (137 tests)2009: 51.8% pass (141 tests)2010: 52.1% pass (165 tests)2011: 48.2% pass (168 tests)2012: 46.3% pass (121 tests)2013: 51.8% pass (112 tests)2014: 59.8% pass (92 tests)2015: 43.4% pass (83 tests)2016: 56.9% pass (51 tests)2017: 58.1% pass (43 tests)2018: 39.4% pass (33 tests)20072018

Pass rate by mileage

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

A low-mileage SMT passes first time 60.3% of the time; by 30k that's 35.9%.

31%48%65%0k: 60.3% pass (479 tests)10k: 48.3% pass (543 tests)20k: 51.9% pass (241 tests)30k: 35.9% pass (39 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 SMT

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
924 46.1 6.3×
steering and suspension
349 17.4 5.6×
brakes
271 13.5 3.2×
drive system
189 9.4 12.5×
lamps and reflectors
64 3.2 1.7×
reg plates and vin
62 3.1 6.6×
tyres and wheels
62 3.1 2.0×
fuel and exhaust
43 2.1 3.7×
body and structure
24 1.2 2.8×
structure and attachments
17 0.8 1.2×

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 SMT beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests PIAGGIO ZIP 71.3% pass · 79.0k tests PIAGGIO NRG 65.5% pass · 40.5k tests PEUGEOT VIVACITY 70.4% pass · 29.7k tests

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 SMT.

Pass rate by registration year

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

Best year to buy used: 2008 (56.8% pass). Weakest: 2007 (44.7%).

42%51%59%2004: 53.1% pass (640 tests)2005: 55.6% pass (279 tests)2006: 53.6% pass (153 tests)2007: 44.7% pass (161 tests)2008: 56.8% pass (74 tests)200420062008

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.

GILERA SMT FAQ

answers computed from the data above · terms in the glossary

Is the GILERA SMT reliable?

The GILERA SMT is less reliable than average for its class: 52.7% of its 1,352 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5365 of 5426 models.

What does a SMT fail its MOT on most?

lighting and signalling — 46% of all defects recorded against failed SMT tests.

What is the best year of SMT to buy used?

By first-time pass rate, 2008-registered examples do best (56.8%) and 2007 worst (44.7%). Condition and history still trump the year.

How many miles will a SMT last?

The median SMT shows 12,700 miles at test, and examples around 30k miles still pass 35.9% of the time — mileage alone rarely kills one.