BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/HARLEY-DAVIDSON
Make report · 2005–2025

HARLEY-DAVIDSON

88.5%
first-time pass rate
5.3%
failed outright
795k
MOT tests, 2005–2025

What fails a HARLEY-DAVIDSON

failure defects across all HARLEY-DAVIDSON models · advisories excluded

lighting and signalling is HARLEY-DAVIDSON's most common failure — 1.5% of all HARLEY-DAVIDSON tests record one.

Component groupShare of defects% of testsWorst offenders
lighting and signalling
1.5 see ranking
brakes
1.3 see ranking
lamps and reflectors
1.1 see ranking
reg plates and vin
0.7
tyres and wheels
0.6 see ranking

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

HARLEY-DAVIDSON models, ranked by test volume

top 60 of 530 models (≥ 100 tests), 2005–2025 · by volume
Model Pass rate Pass % Fail % Median miles Tests
XLH 883
87.4 5.9 10,350 41,183
FLSTF
88.9 4.9 12,491 30,115
FLSTC
89.4 4.9 16,878 23,742
XL
87.9 5.3 6,112 18,536
XL1200C
88.4 5.7 9,978 15,734
XL883
87.2 6.0 8,777 14,882
FXDWG
88.7 5.0 16,025 14,576
XL 1200 C CUSTOM SPORT
88.1 5.3 9,922 13,905
FLSTFI
89.4 4.6 11,248 13,234
XL53 C
87.4 5.7 10,548 12,817
VRSCA
88.6 5.1 7,424 12,144
FLHR
90.9 4.4 20,211 11,373
FXD
88.8 5.4 15,982 10,679
FXDL
89.6 4.5 14,542 10,593
XLH1200
84.6 7.9 14,078 10,367
SPORTSTER
84.6 7.8 12,867 10,171
FLSTCI
89.6 4.7 16,876 9,905
FXDB
88.3 4.8 9,975 8,694
FXSTC
87.3 4.9 16,204 8,332
XL 883R
88.4 5.6 8,669 8,020
FXDF
88.3 4.8 11,938 7,851
FLHRCI
90.2 4.8 18,802 7,360
FXDC
89.9 4.4 11,269 7,238
FXDX
89.2 4.8 16,333 7,204
FLHTCUI
90.7 5.3 22,410 7,204
FXSB
89.3 4.4 6,609 6,915
FXSTB
87.2 5.7 15,768 6,065
FXST
89.2 4.4 17,149 5,664
XL883C SPORTSTER
87.4 6.2 8,811 5,596
XL883C
86.9 6.1 9,488 5,386
FLSTCI HERITAGE SOFTAIL CLASSI
89.2 4.9 16,436 5,380
XL 883L SPORTSTER
88.2 5.4 7,980 5,316
FXR
87.2 6.0 17,779 4,857
FXSTI
87.7 5.4 13,026 4,810
1200
88.0 6.0 8,149 4,691
FAT BOY
88.9 4.9 14,956 4,320
XL 883 R SPORTSTER
88.6 4.7 8,842 4,296
XL1200S
87.3 6.4 11,102 4,163
XL 883 N IRON 17
90.1 4.6 4,976 3,806
FAT BOB
87.5 6.2 9,358 3,762
FLSTS
89.5 4.5 16,337 3,677
XL1200R
88.7 5.6 9,408 3,562
FLSTN
89.9 4.3 10,606 3,534
FLHRC
89.5 5.6 15,557 3,463
XL 1200 LOW SPORTSTER
90.4 4.5 8,973 3,435
XL1200R SPORTSTER 1200
88.8 5.4 11,387 3,317
FXDBI
87.2 5.9 12,562 3,189
MT350
79.7 9.9 11,358 3,058
FLHRCI ROAD KING CLA
89.7 5.0 18,975 3,046
FLHRI
88.7 5.5 19,520 3,038
XR 1200
90.0 5.0 7,991 3,008
FXSTDI
87.4 4.7 13,139 2,932
1200 SPORT
86.0 6.8 12,532 2,867
FXSTBI
89.2 4.2 14,154 2,828
XL 1200 N NIGHTSTER
86.9 5.2 8,290 2,753
FXCWC
89.1 5.1 7,138 2,733
FXDWGI
87.1 5.7 12,440 2,703
FXSTD
87.8 4.7 12,998 2,681
FXDLI
89.2 4.7 12,820 2,584
FLHRSI
87.5 5.9 16,574 2,530

Normal tests only. Median miles is odometer reading at test where recorded. Looking for a specific model? Search all HARLEY-DAVIDSON models. Source: DVSA anonymised MOT results, 2005–2025.