BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

BUELL XB9S

984cc Petrol Class 2
#2792 of 5426 overall #20 of 23 BUELLs #1762 of 2787 other bikes
83.8%
first-time pass rate
10.1%
failed outright
9,035
median miles at test
1,671
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The XB9S's first-time pass rate has fallen 2.8 points since 2006, 85.8% to 83.0%.

73%87%100%2006: 85.8% pass (120 tests)2007: 85.0% pass (153 tests)2008: 86.5% pass (156 tests)2009: 79.9% pass (139 tests)2010: 79.8% pass (109 tests)2011: 80.5% pass (113 tests)2012: 87.8% pass (98 tests)2013: 84.3% pass (83 tests)2014: 78.0% pass (82 tests)2015: 88.3% pass (60 tests)2016: 84.4% pass (64 tests)2017: 86.2% pass (65 tests)2018: 78.9% pass (57 tests)2019: 82.8% pass (58 tests)2020: 90.9% pass (44 tests)2021: 82.0% pass (61 tests)2022: 79.0% pass (62 tests)2023: 82.1% pass (56 tests)2024: 97.3% pass (37 tests)2025: 83.0% pass (47 tests)20062025

Pass rate by mileage

how the XB9S's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XB9S passes first time 86.3% of the time; by 30k that's 75.5%.

72%80%89%0k: 86.3% pass (924 tests)10k: 82.7% pass (539 tests)20k: 74.6% pass (126 tests)30k: 75.5% pass (49 tests)0k20k30k

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 XB9S

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
103 30 1.1×
steering and suspension
49 14.3 0.7×
reg plates and vin
36 10.5 2.5×
tyres and wheels
35 10.2 0.9×
brakes
34 9.9 0.4×
lamps and reflectors
33 9.6 0.8×
fuel and exhaust
20 5.8 1.4×
body and structure
15 4.4 1.5×
Identification of the vehicle
9 2.6 2.3×
structure and attachments
9 2.6 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 XB9S beats 1 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).

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 XB9S.

Pass rate by registration year

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

Best year to buy used: 2003 (83.9% pass). Weakest: 2002 (81.4%).

81%83%85%2002: 81.4% pass (140 tests)2003: 83.9% pass (1,106 tests)2004: 83.5% pass (375 tests)200220032004

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.

BUELL XB9S FAQ

answers computed from the data above · terms in the glossary

Is the BUELL XB9S reliable?

The BUELL XB9S is about average for its class: 83.8% of its 1,671 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2792 of 5426 models.

What does a XB9S fail its MOT on most?

lighting and signalling — 30% of all defects recorded against failed XB9S tests.

What is the best year of XB9S to buy used?

By first-time pass rate, 2003-registered examples do best (83.9%) and 2002 worst (81.4%). Condition and history still trump the year.

How many miles will a XB9S last?

The median XB9S shows 9,035 miles at test, and examples around 30k miles still pass 75.5% of the time — mileage alone rarely kills one.