BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/XL 1200 N NIGHTSTER
Model report · 2005–2025

HARLEY-DAVIDSON XL 1200 N NIGHTSTER

1200cc Petrol Class 2
86.9%
first-time pass rate
5.2%
failed outright
8,290
median miles at test
2,753
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2010–2025

The XL 1200 N NIGHTSTER's first-time pass rate has held steady since 2010 (88.4% → 88.2%).

79%86%92%2010: 88.4% pass (43 tests)2011: 84.6% pass (136 tests)2012: 81.4% pass (210 tests)2013: 86.6% pass (269 tests)2014: 86.2% pass (253 tests)2015: 90.2% pass (254 tests)2016: 87.9% pass (224 tests)2017: 85.1% pass (202 tests)2018: 89.4% pass (151 tests)2019: 87.4% pass (135 tests)2020: 88.8% pass (116 tests)2021: 84.4% pass (167 tests)2022: 86.7% pass (180 tests)2023: 89.4% pass (161 tests)2024: 88.8% pass (116 tests)2025: 88.2% pass (136 tests)20102025

Pass rate by mileage

how the XL 1200 N NIGHTSTER's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XL 1200 N NIGHTSTER passes first time 87.6% of the time; by 40k that's 93.9%.

81%88%96%0k: 87.6% pass (1,615 tests)10k: 85.7% pass (789 tests)20k: 87.6% pass (209 tests)30k: 82.9% pass (70 tests)40k: 93.9% pass (33 tests)0k20k40k

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 N NIGHTSTER

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
65 24.1 0.3×
lamps and reflectors
48 17.8 0.9×
brakes
37 13.7 0.2×
steering and suspension
26 9.6 0.2×
reg plates and vin
19 7 1.0×
Identification of the vehicle
17 6.3 2.7×
structure and attachments
17 6.3 0.7×
fuel and exhaust
14 5.2 0.6×
tyres and wheels
14 5.2 0.2×
tyres
13 4.8 0.6×

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 N NIGHTSTER beats 0 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 N NIGHTSTER.

Pass rate by registration year

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

Best year to buy used: 2007 (88.3% pass). Weakest: 2008 (86.3%).

86%87%89%2007: 88.3% pass (513 tests)2008: 86.3% pass (949 tests)2009: 86.9% pass (810 tests)2010: 86.7% pass (451 tests)200720092010

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 N NIGHTSTER FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON XL 1200 N NIGHTSTER reliable?

The HARLEY-DAVIDSON XL 1200 N NIGHTSTER is more reliable than average for its class: 86.9% of its 2,753 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1937 of 5426 models.

What does a XL 1200 N NIGHTSTER fail its MOT on most?

lighting and signalling — 24% of all defects recorded against failed XL 1200 N NIGHTSTER tests.

What is the best year of XL 1200 N NIGHTSTER to buy used?

By first-time pass rate, 2007-registered examples do best (88.3%) and 2008 worst (86.3%). Condition and history still trump the year.

How many miles will a XL 1200 N NIGHTSTER last?

The median XL 1200 N NIGHTSTER shows 8,290 miles at test, and examples around 40k miles still pass 93.9% of the time — mileage alone rarely kills one.