BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
89.4%
first-time pass rate
6.8%
failed outright
14,888
median miles at test
424
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2012

The LD150's first-time pass rate has held steady since 2006 (86.7% → 86.2%).

85%89%94%2006: 86.7% pass (45 tests)2007: 92.5% pass (40 tests)2008: 86.5% pass (52 tests)2009: 91.8% pass (49 tests)2010: 88.9% pass (45 tests)2011: 89.8% pass (59 tests)2012: 86.2% pass (58 tests)20062012

Pass rate by mileage

how the LD150's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage LD150 passes first time 87.2% of the time; by 30k that's 85.0%.

84%89%94%0k: 87.2% pass (149 tests)10k: 92.3% pass (104 tests)20k: 89.1% pass (101 tests)30k: 85.0% pass (40 tests)0k20k30k

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 LD150

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
23 33.8
brakes
19 27.9
steering and suspension
16 23.5
fuel and exhaust
4 5.9
tyres and wheels
4 5.9
body and structure
1 1.5
suspension
1 1.5

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 LD150 beats 4 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

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 LD150.

Pass rate by registration year

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

Best year to buy used: 1957 (92.6% pass). Weakest: 1958 (83.3%).

81%88%94%1956: 88.7% pass (115 tests)1957: 92.6% pass (148 tests)1958: 83.3% pass (90 tests)195619571958

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.