BIKERELIABILITY Reg check
Model report · 2005–2025

BULTACO ASTRO

49cc Petrol Class 1
52.3%
first-time pass rate
42.1%
failed outright
12,515
median miles at test
107
MOT tests, 2005–2025
-18.6pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

What fails on a ASTRO

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
98 54.1
steering and suspension
24 13.3
brakes
21 11.6
drive system
15 8.3
tyres and wheels
9 5
fuel and exhaust
4 2.2
lamps and reflectors
3 1.7
reg plates and vin
3 1.7
driving controls
2 1.1
Items Not Tested
2 1.1

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 ASTRO beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

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 ASTRO.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the Astro

More BULTACO models

other BULTACO bikes ranked by MOT pass rate

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