MASH FIFTY

49cc Petrol Class 1

#4629 of 5426 overall #3 of 4 MASHs #208 of 455 moped bikes

71.3%

first-time pass rate

16.8%

failed outright

4,430

median miles at test

345

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The FIFTY's first-time pass rate has fallen 20.4 points since 2020, 81.4% to 61.0%.

What fails on a FIFTY

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	95	51.4
structure and attachments	38	20.5
brakes	23	12.4
suspension	13	7
steering	12	6.5
audible warning (Horn)	2	1.1
wheels	2	1.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FIFTY beats 3 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 FIFTY.

Pass rate by registration year

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

Best year to buy used: 2017 (73.0% pass). Weakest: 2018 (67.3%).

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.