BIKERELIABILITY Reg check
League table/ PGO/COMET
Model report · 2005–2025

PGO COMET

49cc Petrol Class 1
#4974 of 5428 overall #8 of 8 PGOs #309 of 456 moped bikes
65.9%
first-time pass rate
23.2%
failed outright
7,352
median miles at test
504
MOT tests, 2005–2025
-7.5pp
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 · 2006–2011

The COMET's first-time pass rate has fallen 9.8 points since 2006, 72.3% to 62.5%.

54%65%76%2006: 72.3% pass (101 tests)2007: 70.2% pass (84 tests)2008: 57.4% pass (61 tests)2009: 63.3% pass (49 tests)2010: 67.5% pass (40 tests)2011: 62.5% pass (32 tests)20062011

What fails on a COMET

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
158 51.3 4.1×
brakes
46 14.9 1.7×
steering and suspension
30 9.7 1.6×
fuel and exhaust
20 6.5 5.0×
lamps and reflectors
16 5.2 1.4×
tyres and wheels
14 4.5 1.2×
body and structure
10 3.2 4.1×
reg plates and vin
8 2.6 2.8×
Items Not Tested
4 1.3 8.6×
structure and attachments
2 0.6 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 COMET beats 2 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests Compare head-to-head →
PIAGGIO ZIP 71.3% pass · 79.0k tests Compare head-to-head →
PIAGGIO NRG 65.5% pass · 40.5k tests Compare head-to-head →
PEUGEOT VIVACITY 70.4% pass · 29.7k 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 COMET.

Compare with any bike

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

More PGO models

other PGO bikes ranked by MOT pass rate
PGO T-REX 76.5% pass · 1,219 tests
PGO G-MAX 73.5% pass · 908 tests
PGO RODO SHOW 77.7% pass · 614 tests
PGO PMX50 69.8% pass · 437 tests
PGO T-REX 50 72.3% pass · 357 tests
PGO LIGERO 69.9% pass · 272 tests

See all PGO models →

Pass rate by registration year

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

Best year to buy used: 2002 (70.9% pass). Weakest: 2000 (61.9%).

60%66%73%2000: 61.9% pass (139 tests)2001: 68.5% pass (162 tests)2002: 70.9% pass (79 tests)2003: 69.7% pass (66 tests)200020022003

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.

PGO COMET FAQ

answers computed from the data above · terms in the glossary

Is the PGO COMET reliable?

The PGO COMET is less reliable than average for its class: 65.9% of its 504 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4974 of 5428 models.

What does a COMET fail its MOT on most?

lighting and signalling — 51% of all defects recorded against failed COMET tests.

What is the best year of COMET to buy used?

By first-time pass rate, 2002-registered examples do best (70.9%) and 2000 worst (61.9%). Condition and history still trump the year.

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