WHITE KNUCKLE XY 125-11

124cc Petrol Class 1

#5400 of 5426 overall #3 of 4 WHITE KNUCKLEs #721 of 734 commuter bikes

48.6%

first-time pass rate

36.1%

failed outright

8,870

median miles at test

280

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2017

The XY 125-11's first-time pass rate has risen 10.2 points since 2015, 37.3% to 47.5%.

What fails on a XY 125-11

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	110	32.7
steering and suspension	62	18.5
brakes	46	13.7
drive system	34	10.1
suspension	20	6
lamps and reflectors	19	5.7
structure and attachments	14	4.2
body and structure	12	3.6
tyres and wheels	10	3
fuel and exhaust	9	2.7

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 XY 125-11 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 XY 125-11.

Pass rate by registration year

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

Best year to buy used: 2012 (47.9% pass). Weakest: 2013 (45.0%).

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.