BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUKIDA/SK 125-4 INSPECTOR
Model report · 2005–2025

SUKIDA SK 125-4 INSPECTOR

125cc Petrol Class 1
#4947 of 5426 overall #3 of 10 SUKIDAs #488 of 734 commuter bikes
66.4%
first-time pass rate
22.3%
failed outright
7,748
median miles at test
737
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2010–2017

The SK 125-4 INSPECTOR's first-time pass rate has risen 13.6 points since 2010, 56.7% to 70.3%.

53%64%74%2010: 56.7% pass (67 tests)2011: 63.1% pass (130 tests)2012: 68.1% pass (119 tests)2013: 60.7% pass (89 tests)2014: 65.8% pass (79 tests)2015: 63.6% pass (55 tests)2016: 68.2% pass (44 tests)2017: 70.3% pass (37 tests)20102017

Pass rate by mileage

how the SK 125-4 INSPECTOR's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage SK 125-4 INSPECTOR passes first time 70.4% of the time; by 20k that's 60.4%.

57%65%73%0k: 70.4% pass (449 tests)10k: 59.6% pass (225 tests)20k: 60.4% pass (53 tests)0k10k20k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a SK 125-4 INSPECTOR

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
193 38.7 3.8×
steering and suspension
96 19.2 3.2×
brakes
72 14.4 1.7×
drive system
58 11.6 7.3×
body and structure
25 5 5.7×
structure and attachments
12 2.4 1.6×
fuel and exhaust
12 2.4 2.0×
lamps and reflectors
12 2.4 0.7×
tyres and wheels
11 2.2 0.6×
driving controls
8 1.6 4.6×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the SK 125-4 INSPECTOR beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k tests

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 SK 125-4 INSPECTOR.

Pass rate by registration year

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

Best year to buy used: 2006 (69.0% pass). Weakest: 2007 (65.5%).

65%67%70%2006: 69.0% pass (145 tests)2007: 65.5% pass (287 tests)2008: 65.9% pass (302 tests)200620072008

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.

SUKIDA SK 125-4 INSPECTOR FAQ

answers computed from the data above · terms in the glossary

Is the SUKIDA SK 125-4 INSPECTOR reliable?

The SUKIDA SK 125-4 INSPECTOR is less reliable than average for its class: 66.4% of its 737 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4947 of 5426 models.

What does a SK 125-4 INSPECTOR fail its MOT on most?

lighting and signalling — 39% of all defects recorded against failed SK 125-4 INSPECTOR tests.

What is the best year of SK 125-4 INSPECTOR to buy used?

By first-time pass rate, 2006-registered examples do best (69.0%) and 2007 worst (65.5%). Condition and history still trump the year.

How many miles will a SK 125-4 INSPECTOR last?

The median SK 125-4 INSPECTOR shows 7,748 miles at test, and examples around 20k miles still pass 60.4% of the time — mileage alone rarely kills one.