DERBI ATLANTIS

49cc Petrol Class 1

#4459 of 5426 overall #2 of 19 DERBIs #169 of 455 moped bikes

73.4%

first-time pass rate

18.8%

failed outright

9,846

median miles at test

1,505

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2016

The ATLANTIS's first-time pass rate has fallen 8.3 points since 2005, 78.0% to 69.7%.

Pass rate by mileage

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

A low-mileage ATLANTIS passes first time 80.8% of the time; by 30k that's 45.2%.

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 ATLANTIS

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	274	37.1	2.5×
brakes	179	24.2	1.7×
steering and suspension	151	20.4	2.2×
fuel and exhaust	50	6.8	4.0×
body and structure	28	3.8	3.5×
tyres and wheels	18	2.4	0.6×
reg plates and vin	18	2.4	2.0×
lamps and reflectors	12	1.6	0.3×
structure and attachments	5	0.7	0.4×
suspension	4	0.5	0.4×

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 ATLANTIS beats 4 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 ATLANTIS.

Pass rate by registration year

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

Best year to buy used: 2003 (80.2% pass). Weakest: 2005 (68.8%).

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.

DERBI ATLANTIS FAQ

answers computed from the data above · terms in the glossary

Is the DERBI ATLANTIS reliable?

The DERBI ATLANTIS is about average for its class: 73.4% of its 1,505 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4459 of 5426 models.

What does a ATLANTIS fail its MOT on most?

lighting and signalling — 37% of all defects recorded against failed ATLANTIS tests.

What is the best year of ATLANTIS to buy used?

By first-time pass rate, 2003-registered examples do best (80.2%) and 2005 worst (68.8%). Condition and history still trump the year.

How many miles will a ATLANTIS last?

The median ATLANTIS shows 9,846 miles at test, and examples around 30k miles still pass 45.2% of the time — mileage alone rarely kills one.