BIKERELIABILITY Reg check
Model report · 2005–2025

NIPPONIA BRIO

120cc Petrol Class 1
78.1%
first-time pass rate
15.6%
failed outright
5,867
median miles at test
160
MOT tests, 2005–2025
+3.7pp
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 BRIO

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
31 41.9
structure and attachments
14 18.9
brakes
10 13.5
tyres
7 9.5
steering
6 8.1
audible warning (Horn)
2 2.7
wheels
1 1.4
drive system
1 1.4
suspension
1 1.4
tyres and wheels
1 1.4

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 BRIO beats 3 of its 4 closest rivals (YAMAHA YBR 125, HONDA C90, HONDA CG125).

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 BRIO.

Compare with any bike

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

Pass rate by registration year

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

Best year to buy used: 2016 (79.5% pass). Weakest: 2016 (79.5%).

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.

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