BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
84.0%
first-time pass rate
10.9%
failed outright
13,690
median miles at test
1,610
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2024

The DOUGLAS's first-time pass rate has risen 10.8 points since 2006, 82.5% to 93.3%.

72%85%98%2006: 82.5% pass (97 tests)2007: 80.3% pass (76 tests)2008: 82.8% pass (87 tests)2009: 78.6% pass (84 tests)2010: 76.3% pass (93 tests)2011: 85.4% pass (103 tests)2012: 81.1% pass (127 tests)2013: 83.5% pass (139 tests)2014: 83.4% pass (151 tests)2015: 87.4% pass (127 tests)2016: 88.3% pass (103 tests)2017: 83.7% pass (98 tests)2018: 87.9% pass (66 tests)2019: 83.3% pass (48 tests)2020: 84.2% pass (38 tests)2021: 93.2% pass (44 tests)2022: 81.4% pass (43 tests)2024: 93.3% pass (30 tests)20062024

Pass rate by mileage

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

A low-mileage DOUGLAS passes first time 85.1% of the time; by 30k that's 80.2%.

79%83%86%0k: 85.1% pass (606 tests)10k: 83.1% pass (502 tests)20k: 84.9% pass (332 tests)30k: 80.2% pass (101 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 DOUGLAS

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
171 43.6 1.4×
brakes
70 17.9 0.8×
steering and suspension
66 16.8 1.2×
tyres and wheels
26 6.6 0.7×
lamps and reflectors
19 4.8 0.4×
reg plates and vin
13 3.3 1.3×
body and structure
9 2.3 1.2×
driving controls
7 1.8 1.9×
fuel and exhaust
7 1.8 0.6×
steering
4 1 0.6×

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 DOUGLAS 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 DOUGLAS.

Pass rate by registration year

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

Best year to buy used: 1980 (89.2% pass). Weakest: 1991 (76.5%).

74%83%92%1980: 89.2% pass (93 tests)1981: 84.1% pass (63 tests)1983: 81.7% pass (93 tests)1984: 79.8% pass (84 tests)1985: 83.9% pass (124 tests)1986: 88.7% pass (71 tests)1987: 81.8% pass (77 tests)1989: 83.5% pass (133 tests)1990: 88.9% pass (99 tests)1991: 76.5% pass (68 tests)1992: 80.0% pass (55 tests)198019861992

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.

VESPA (DOUGLAS) DOUGLAS FAQ

answers computed from the data above · terms in the glossary

Is the VESPA (DOUGLAS) DOUGLAS reliable?

The VESPA (DOUGLAS) DOUGLAS is more reliable than average for its class: 84.0% of its 1,610 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #2749 of 5426 models.

What does a DOUGLAS fail its MOT on most?

lighting and signalling — 44% of all defects recorded against failed DOUGLAS tests.

What is the best year of DOUGLAS to buy used?

By first-time pass rate, 1980-registered examples do best (89.2%) and 1991 worst (76.5%). Condition and history still trump the year.

How many miles will a DOUGLAS last?

The median DOUGLAS shows 13,690 miles at test, and examples around 30k miles still pass 80.2% of the time — mileage alone rarely kills one.