BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
89.8%
first-time pass rate
6.4%
failed outright
2,980
median miles at test
1,064
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The 150's first-time pass rate has risen 1.5 points since 2006, 88.7% to 90.2%.

74%87%100%2006: 88.7% pass (62 tests)2007: 82.6% pass (69 tests)2008: 78.2% pass (55 tests)2009: 80.9% pass (68 tests)2010: 94.7% pass (75 tests)2011: 95.3% pass (85 tests)2012: 86.2% pass (94 tests)2013: 92.9% pass (85 tests)2014: 90.5% pass (95 tests)2015: 94.1% pass (101 tests)2016: 90.3% pass (93 tests)2017: 90.2% pass (82 tests)20062017

Pass rate by mileage

how the 150's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage 150 passes first time 89.9% of the time; by 40k that's 92.7%.

86%90%95%0k: 89.9% pass (663 tests)10k: 87.1% pass (116 tests)20k: 89.1% pass (110 tests)30k: 93.8% pass (65 tests)40k: 92.7% pass (41 tests)0k20k40k

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 150

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
72 48.3 1.0×
brakes
36 24.2 0.6×
steering and suspension
15 10.1 0.4×
tyres and wheels
13 8.7 0.5×
fuel and exhaust
4 2.7 0.4×
body and structure
4 2.7 0.4×
reg plates and vin
2 1.3 0.3×
Items Not Tested
2 1.3 2.0×
tyres
1 0.7 0.1×

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 150 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 150.

Pass rate by registration year

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

Best year to buy used: 1960 (93.7% pass). Weakest: 1965 (83.5%).

81%89%96%1960: 93.7% pass (63 tests)1962: 88.4% pass (121 tests)1963: 91.4% pass (58 tests)1964: 91.5% pass (189 tests)1965: 83.5% pass (121 tests)1966: 93.0% pass (71 tests)1967: 88.2% pass (68 tests)196019641967

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.

LAMBRETTA 150 FAQ

answers computed from the data above · terms in the glossary

Is the LAMBRETTA 150 reliable?

The LAMBRETTA 150 is more reliable than average for its class: 89.8% of its 1,064 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #1024 of 5426 models.

What does a 150 fail its MOT on most?

lighting and signalling — 48% of all defects recorded against failed 150 tests.

What is the best year of 150 to buy used?

By first-time pass rate, 1960-registered examples do best (93.7%) and 1965 worst (83.5%). Condition and history still trump the year.

How many miles will a 150 last?

The median 150 shows 2,980 miles at test, and examples around 40k miles still pass 92.7% of the time — mileage alone rarely kills one.