BIKERELIABILITY Reg check
Model report · 2005–2025

CAGIVA W8

124cc Petrol Class 1
59.2%
first-time pass rate
34.4%
failed outright
13,924
median miles at test
157
MOT tests, 2005–2025
-13.7pp
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 W8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
99 43.8
brakes
41 18.1
steering and suspension
30 13.3
drive system
17 7.5
fuel and exhaust
13 5.8
tyres and wheels
11 4.9
lamps and reflectors
5 2.2
body and structure
5 2.2
reg plates and vin
4 1.8
structure and attachments
1 0.4

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 W8 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

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 W8.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the W8

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