BIKERELIABILITY Reg check
League table/ AJS/CR3-125
Model report · 2005–2025

AJS CR3-125

124cc Petrol Class 1
#5427 of 5428 overall #45 of 45 AJSs #733 of 734 commuter bikes
43.9%
first-time pass rate
45.4%
failed outright
6,446
median miles at test
262
MOT tests, 2005–2025
-29.3pp
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.

Pass rate over time

first-time pass rate by test year · 2010–2013

The CR3-125's first-time pass rate has risen 12.2 points since 2010, 37.8% to 50.0%.

34%44%53%2010: 37.8% pass (37 tests)2011: 42.2% pass (45 tests)2012: 37.5% pass (40 tests)2013: 50.0% pass (38 tests)20102013

What fails on a CR3-125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
186 38.4
steering and suspension
94 19.4
brakes
59 12.2
drive system
40 8.3
body and structure
33 6.8
tyres and wheels
30 6.2
fuel and exhaust
17 3.5
lamps and reflectors
10 2.1
structure and attachments
8 1.7
driving controls
7 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 CR3-125 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 CR3-125.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the CR3-125

Pass rate by registration year

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

Best year to buy used: 2008 (49.0% pass). Weakest: 2007 (40.8%).

39%45%51%2007: 40.8% pass (120 tests)2008: 49.0% pass (104 tests)20072008

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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