BIKERELIABILITY Reg check
League table/ BAJAJ/CLASSIC SL
Model report · 2005–2025

BAJAJ CLASSIC SL

125cc Petrol Class 1
72.3%
first-time pass rate
23.5%
failed outright
4,644
median miles at test
119
MOT tests, 2005–2025
-3.0pp
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 CLASSIC SL

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
22 34.4
brakes
14 21.9
steering and suspension
6 9.4
lamps and reflectors
6 9.4
tyres and wheels
5 7.8
reg plates and vin
5 7.8
tyres
3 4.7
steering
1 1.6
structure and attachments
1 1.6
suspension
1 1.6

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 CLASSIC SL beats 3 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 CLASSIC SL.

Compare with any bike

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

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