MBK NITRO (Y050)

49cc Petrol Class 1

#5350 of 5426 overall #12 of 13 MBKs #415 of 455 moped bikes

53.9%

first-time pass rate

38.6%

failed outright

9,443

median miles at test

536

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2009

The NITRO (Y050)'s first-time pass rate has risen 4.1 points since 2006, 54.0% to 58.1%.

What fails on a NITRO (Y050)

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	325	46	7.5×
brakes	130	18.4	4.0×
steering and suspension	127	18	5.3×
fuel and exhaust	49	6.9	10.6×
tyres and wheels	32	4.5	2.7×
body and structure	19	2.7	6.2×
reg plates and vin	18	2.5	4.2×
lamps and reflectors	4	0.6	0.2×
Items Not Tested	2	0.3	4.1×
driving controls	1	0.1	0.8×

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 NITRO (Y050) 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 NITRO (Y050).

Pass rate by registration year

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

Best year to buy used: 2001 (67.6% pass). Weakest: 2002 (47.8%).

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.

MBK NITRO (Y050) FAQ

answers computed from the data above · terms in the glossary

Is the MBK NITRO (Y050) reliable?

The MBK NITRO (Y050) is less reliable than average for its class: 53.9% of its 536 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5350 of 5426 models.

What does a NITRO (Y050) fail its MOT on most?

lighting and signalling — 46% of all defects recorded against failed NITRO (Y050) tests.

What is the best year of NITRO (Y050) to buy used?

By first-time pass rate, 2001-registered examples do best (67.6%) and 2002 worst (47.8%). Condition and history still trump the year.