BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ AJS/DD 125 E 08
Model report · 2005–2025

AJS DD 125 E 08

125cc Petrol Class 1
#4893 of 5426 overall #32 of 45 AJSs #462 of 734 commuter bikes
67.3%
first-time pass rate
20.3%
failed outright
5,256
median miles at test
1,468
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2025

The DD 125 E 08's first-time pass rate has risen 20.6 points since 2011, 63.3% to 83.9%.

48%70%91%2011: 63.3% pass (30 tests)2012: 67.2% pass (67 tests)2013: 70.7% pass (123 tests)2014: 66.3% pass (172 tests)2015: 71.1% pass (201 tests)2016: 69.1% pass (220 tests)2017: 64.1% pass (145 tests)2018: 62.0% pass (92 tests)2019: 63.6% pass (77 tests)2020: 71.4% pass (70 tests)2021: 67.1% pass (79 tests)2022: 55.4% pass (74 tests)2023: 63.5% pass (52 tests)2024: 74.3% pass (35 tests)2025: 83.9% pass (31 tests)20112025

What fails on a DD 125 E 08

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
211 23.8 2.0×
brakes
190 21.4 1.9×
lamps and reflectors
124 14 3.0×
steering and suspension
98 11 1.6×
drive system
71 8 5.3×
structure and attachments
59 6.7 3.7×
tyres and wheels
54 6.1 1.2×
suspension
30 3.4 2.1×
tyres
30 3.4 2.1×
body and structure
20 2.3 2.6×

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 DD 125 E 08 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 DD 125 E 08.

Pass rate by registration year

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

Best year to buy used: 2013 (71.6% pass). Weakest: 2011 (62.9%).

61%67%73%2008: 68.7% pass (150 tests)2009: 68.4% pass (253 tests)2010: 68.1% pass (339 tests)2011: 62.9% pass (318 tests)2012: 67.2% pass (265 tests)2013: 71.6% pass (134 tests)200820112013

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.

AJS DD 125 E 08 FAQ

answers computed from the data above · terms in the glossary

Is the AJS DD 125 E 08 reliable?

The AJS DD 125 E 08 is less reliable than average for its class: 67.3% of its 1,468 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4893 of 5426 models.

What does a DD 125 E 08 fail its MOT on most?

lighting and signalling — 24% of all defects recorded against failed DD 125 E 08 tests.

What is the best year of DD 125 E 08 to buy used?

By first-time pass rate, 2013-registered examples do best (71.6%) and 2011 worst (62.9%). Condition and history still trump the year.