BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

DAELIM SN

124cc Petrol Class 1
77.2%
first-time pass rate
16.5%
failed outright
8,398
median miles at test
158
MOT tests, 2005–2025

What fails on a SN

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
26 36.6
lamps and reflectors
9 12.7
suspension
9 12.7
tyres
8 11.3
structure and attachments
8 11.3
lighting and signalling
5 7
steering
3 4.2
tyres and wheels
1 1.4
steering and suspension
1 1.4
audible warning (Horn)
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 SN beats 4 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 SN.

Pass rate by registration year

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

Best year to buy used: 2014 (70.0% pass). Weakest: 2014 (70.0%).

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.