BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/XL 1200 XS FORTY EIGHT SP 20
Model report · 2005–2025

HARLEY-DAVIDSON XL 1200 XS FORTY EIGHT SP 20

1202cc Petrol Class 2
90.4%
first-time pass rate
5.2%
failed outright
3,507
median miles at test
115
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2023–2025

The XL 1200 XS FORTY EIGHT SP 20's first-time pass rate has risen 3.6 points since 2023, 87.8% to 91.4%.

87%90%93%2023: 87.8% pass (41 tests)2024: 92.1% pass (38 tests)2025: 91.4% pass (35 tests)20232025

What fails on a XL 1200 XS FORTY EIGHT SP 20

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
Identification of the vehicle
3 42.9
tyres
2 28.6
brakes
1 14.3
lamps and reflectors
1 14.3

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the XL 1200 XS FORTY EIGHT SP 20 beats 4 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 XS FORTY EIGHT SP 20.

Pass rate by registration year

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

Best year to buy used: 2020 (90.1% pass). Weakest: 2020 (90.1%).

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.