BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/DERBI
Make report · 2005–2025

DERBI

59.4%
first-time pass rate
30.1%
failed outright
27.3k
MOT tests, 2005–2025

What fails a DERBI

failure defects across all DERBI models · advisories excluded

lighting and signalling is DERBI's most common failure — 16.6% of all DERBI tests record one.

Component groupShare of defects% of testsWorst offenders
lighting and signalling
16.6 see ranking
steering and suspension
12.1 see ranking
brakes
12.5 see ranking
drive system
5.8 see ranking
lamps and reflectors
3.7 see ranking

Top failure groups aggregated across every DERBI model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.

DERBI models, ranked by test volume

29 models with ≥ 100 normal tests, 2005–2025
Model Pass rate Pass % Fail % Median miles Tests
SENDA
55.0 33.6 9,556 9,050
GPR50-R
53.4 37.2 13,707 1,901
GPR 50
54.7 35.2 10,576 1,847
ATLANTIS
73.4 18.8 9,846 1,505
PREDATOR
66.3 25.3 8,024 1,298
SENDA SM
51.1 35.5 10,212 1,013
GPR125
59.6 29.7 6,154 908
GP1
66.0 25.6 5,804 754
TERRA
71.1 16.5 5,586 744
GPR
59.1 29.3 6,526 629
TERRA 125
67.7 24.3 6,802 613
GPR 125 09
64.6 25.6 5,991 582
SENDA (RESTRICTED)
46.7 43.4 11,351 516
TERRA 125 ADVENTURE
72.7 16.8 6,779 476
SENDA XTREME SM
58.4 26.9 7,942 416
MULHACEN 125
63.0 28.1 7,879 413
X-RACE 50 SM
53.2 34.6 9,844 327
SENDA SM 125 CROSS CITY
63.5 23.1 8,116 307
MULHACEN 659
87.4 7.3 5,330 206
MULHACEN
75.1 13.7 5,156 197
SENDA XTREME DRD SM 50
59.0 25.0 5,718 188
GPR 50 10
63.1 30.4 7,786 168
GP1 250
84.7 9.7 4,262 144
X-RACE 50 R
44.7 40.2 9,190 132
GPR MALOSSI
58.8 33.6 8,735 131
SENDA SM 125
56.3 36.1 10,079 119
CROSS CITY
64.8 16.2 6,520 105
GP1 125
54.8 32.7 9,722 104
BOULEVARD
61.0 28.0 6,228 100

Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.