BIKERELIABILITY Reg check
Model report · 2005–2025

BIMOTA YB9

598cc Petrol Class 2
79.8%
first-time pass rate
13.8%
failed outright
14,610
median miles at test
109
MOT tests, 2005–2025
-3.3pp
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 YB9

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
9 33.3
brakes
7 25.9
steering and suspension
5 18.5
drive system
2 7.4
reg plates and vin
2 7.4
fuel and exhaust
1 3.7
tyres and wheels
1 3.7

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 YB9 beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 YB9.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the YB9

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