BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/XL 1200 X FORTY EIGHT
Model report · 2005–2025

HARLEY-DAVIDSON XL 1200 X FORTY EIGHT

1202cc Petrol Class 2
87.7%
first-time pass rate
4.4%
failed outright
6,099
median miles at test
2,044
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2025

The XL 1200 X FORTY EIGHT's first-time pass rate has risen 2.1 points since 2013, 87.9% to 90.0%.

80%87%94%2013: 87.9% pass (107 tests)2014: 86.1% pass (251 tests)2015: 87.2% pass (226 tests)2016: 87.2% pass (211 tests)2017: 91.5% pass (188 tests)2018: 88.9% pass (135 tests)2019: 82.5% pass (137 tests)2020: 85.7% pass (119 tests)2021: 91.0% pass (145 tests)2022: 83.9% pass (155 tests)2023: 89.4% pass (151 tests)2024: 90.7% pass (107 tests)2025: 90.0% pass (110 tests)20132025

Pass rate by mileage

how the XL 1200 X FORTY EIGHT's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XL 1200 X FORTY EIGHT passes first time 88.2% of the time; by 20k that's 81.8%.

81%85%89%0k: 88.2% pass (1,499 tests)10k: 87.8% pass (458 tests)20k: 81.8% pass (66 tests)0k10k20k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a XL 1200 X FORTY EIGHT

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
36 21.4 0.7×
reg plates and vin
35 20.8 2.1×
lighting and signalling
33 19.6 0.2×
Identification of the vehicle
15 8.9 3.2×
brakes
13 7.7 0.2×
structure and attachments
10 6 0.6×
suspension
9 5.4 0.5×
fuel and exhaust
6 3.6 0.4×
tyres and wheels
6 3.6 0.1×
tyres
5 3 0.4×

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 XL 1200 X FORTY EIGHT beats 1 of its 4 closest rivals (TRIUMPH BONNEVILLE, TRIUMPH THUNDERBIRD, HARLEY-DAVIDSON XLH 883).

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 XL 1200 X FORTY EIGHT.

Pass rate by registration year

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

Best year to buy used: 2011 (88.2% pass). Weakest: 2010 (87.7%).

87%88%89%2010: 87.7% pass (1,043 tests)2011: 88.2% pass (944 tests)20102011

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.

HARLEY-DAVIDSON XL 1200 X FORTY EIGHT FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON XL 1200 X FORTY EIGHT reliable?

The HARLEY-DAVIDSON XL 1200 X FORTY EIGHT is more reliable than average for its class: 87.7% of its 2,044 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1693 of 5426 models.

What does a XL 1200 X FORTY EIGHT fail its MOT on most?

lamps and reflectors — 21% of all defects recorded against failed XL 1200 X FORTY EIGHT tests.

How many miles will a XL 1200 X FORTY EIGHT last?

The median XL 1200 X FORTY EIGHT shows 6,099 miles at test, and examples around 20k miles still pass 81.8% of the time — mileage alone rarely kills one.