YAMAHA DT50MX

49cc Petrol Class 1

#5097 of 5426 overall #397 of 409 YAMAHAs #351 of 455 moped bikes

63.2%

first-time pass rate

22.1%

failed outright

18,723

median miles at test

321

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2007

The DT50MX's first-time pass rate has risen 5.2 points since 2006, 62.5% to 67.7%.

Pass rate by mileage

how the DT50MX's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage DT50MX passes first time 63.6% of the time; by 30k that's 62.0%.

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 DT50MX

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	140	42.7
steering and suspension	52	15.9
brakes	37	11.3
drive system	32	9.8
tyres and wheels	27	8.2
fuel and exhaust	14	4.3
lamps and reflectors	13	4
body and structure	8	2.4
driving controls	3	0.9
audible warning (Horn)	2	0.6

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 DT50MX 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 DT50MX.