BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/XL 1200 T SUPERLOW SPORTSTER18
Model report · 2005–2025

HARLEY-DAVIDSON XL 1200 T SUPERLOW SPORTSTER18

1202cc Petrol Class 2
94.1%
first-time pass rate
1.7%
failed outright
6,724
median miles at test
290
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2021–2025

The XL 1200 T SUPERLOW SPORTSTER18's first-time pass rate has risen 6.1 points since 2021, 87.9% to 94.0%.

85%93%100%2021: 87.9% pass (58 tests)2022: 95.4% pass (65 tests)2023: 95.5% pass (66 tests)2024: 97.9% pass (48 tests)2025: 94.0% pass (50 tests)20212025

What fails on a XL 1200 T SUPERLOW SPORTSTER18

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
tyres
2 33.3
Identification of the vehicle
1 16.7
brakes
1 16.7
lamps and reflectors
1 16.7
structure and attachments
1 16.7

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 T SUPERLOW SPORTSTER18 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 T SUPERLOW SPORTSTER18.

Pass rate by registration year

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

Best year to buy used: 2018 (94.4% pass). Weakest: 2018 (94.4%).

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.