BIKERELIABILITY Reg check
League table/ DERBI/SENDA SM 125 CROSS CITY
Model report · 2005–2025

DERBI SENDA SM 125 CROSS CITY

124cc Petrol Class 1
#5086 of 5428 overall #9 of 19 DERBIs #557 of 734 commuter bikes
63.5%
first-time pass rate
23.1%
failed outright
8,116
median miles at test
307
MOT tests, 2005–2025
-9.6pp
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.

Pass rate over time

first-time pass rate by test year · 2011–2015

The SENDA SM 125 CROSS CITY's first-time pass rate has risen 5.4 points since 2011, 64.9% to 70.3%.

47%61%75%2011: 64.9% pass (37 tests)2012: 62.2% pass (45 tests)2014: 51.5% pass (33 tests)2015: 70.3% pass (37 tests)20112015

What fails on a SENDA SM 125 CROSS CITY

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
79 33.1
brakes
55 23
steering and suspension
26 10.9
drive system
25 10.5
tyres and wheels
14 5.9
fuel and exhaust
13 5.4
body and structure
9 3.8
structure and attachments
7 2.9
lamps and reflectors
6 2.5
suspension
5 2.1

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 SENDA SM 125 CROSS CITY 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 SENDA SM 125 CROSS CITY.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the Senda SM 125 Cross City

Pass rate by registration year

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

Best year to buy used: 2009 (68.1% pass). Weakest: 2008 (64.3%).

64%66%69%2008: 64.3% pass (112 tests)2009: 68.1% pass (72 tests)20082009

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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