BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Buell XB12X Ulysses: MOT pass rate by registration year

Which XB12X Ulysses years pass first time, and which fall short of the model's 88.0% average, from 1,755 DVSA tests.

2010
highest-passing year · 94.3%
2006
lowest-passing year · 86.2%
8.1pp
spread across 6 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 2010 (94.3% of 53 tests). Lowest: 2006 (86.2% of 311).

85%90%96%2005: 86.9% pass (420 tests)2006: 86.2% pass (311 tests)2007: 90.0% pass (598 tests)2008: 87.1% pass (319 tests)2009: 86.3% pass (51 tests)2010: 94.3% pass (53 tests)200520082010
RegisteredTestsFirst-time passvs model (88.0%)
2005 420 86.9% -1.1 pp
2006 311 86.2% -1.8 pp
2007 598 90.0% +2.0 pp
2008 319 87.1% -0.9 pp
2009 51 86.3% -1.7 pp
2010 53 94.3% +6.3 pp

Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.

Pass rate over time

first-time pass rate by test year · 2009–2025
79%87%96%2009: 90.8% pass (76 tests)2010: 90.4% pass (135 tests)2011: 85.1% pass (161 tests)2012: 92.1% pass (140 tests)2013: 89.4% pass (142 tests)2014: 81.5% pass (124 tests)2015: 85.5% pass (124 tests)2016: 86.9% pass (122 tests)2017: 86.7% pass (113 tests)2018: 87.2% pass (86 tests)2019: 86.9% pass (84 tests)2020: 88.1% pass (67 tests)2021: 93.0% pass (86 tests)2022: 91.1% pass (79 tests)2023: 92.6% pass (81 tests)2024: 84.3% pass (51 tests)2025: 87.3% pass (55 tests)20092025

Questions

Which XB12X Ulysses years have the lowest MOT pass rate?
none: no registration year of the Buell XB12X Ulysses falls more than two points under the model's 88.0% overall pass rate.
Which XB12X Ulysses year has the highest MOT pass rate?
2010, at 94.3% of 53 first tests (2005–2025).
How much does the XB12X Ulysses pass rate vary by year?
8.1 percentage points between the highest (2010, 94.3%) and lowest (2006, 86.2%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

Full report: Buell XB12X Ulysses reliability, failures and mileage · ranked #1604 of 5428 models· other Buell models: XB12S, S1, M2, XB12R, XB9R, X1