DERBI GPR 125 09

124cc Petrol Class 1

#5033 of 5426 overall #8 of 19 DERBIs #528 of 734 commuter bikes

64.6%

first-time pass rate

25.6%

failed outright

5,991

median miles at test

582

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2020

The GPR 125 09's first-time pass rate has fallen 12.1 points since 2013, 63.6% to 51.5%.

What fails on a GPR 125 09

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	128	29.5	3.1×
lighting and signalling	71	16.4	2.0×
steering and suspension	56	12.9	2.5×
lamps and reflectors	39	9	2.4×
drive system	38	8.8	6.4×
structure and attachments	33	7.6	4.5×
tyres and wheels	21	4.8	1.6×
body and structure	20	4.6	5.4×
suspension	18	4.1	3.3×
fuel and exhaust	10	2.3	2.0×

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 GPR 125 09 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 GPR 125 09.

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: 2011 (61.2%).

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.

DERBI GPR 125 09 FAQ

answers computed from the data above · terms in the glossary

Is the DERBI GPR 125 09 reliable?

The DERBI GPR 125 09 is less reliable than average for its class: 64.6% of its 582 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5033 of 5426 models.

What does a GPR 125 09 fail its MOT on most?

brakes — 29% of all defects recorded against failed GPR 125 09 tests.

What is the best year of GPR 125 09 to buy used?

By first-time pass rate, 2009-registered examples do best (68.1%) and 2011 worst (61.2%). Condition and history still trump the year.