BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha YQ 50 Aerox: MOT pass rate by registration year

Which YQ 50 Aerox years pass first time, and which fall short of the model's 57.3% average, from 4,773 DVSA tests.

2012
highest-passing year · 66.9%
2004
lowest-passing year · 52.5%
14.4pp
spread across 15 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: 2012 (66.9% of 239 tests). Lowest: 2004 (52.5% of 408). Years more than two points below the model average: 1998, 2003, 2004, 2005.

50%60%70%1998: 54.2% pass (59 tests)1999: 57.5% pass (120 tests)2000: 57.2% pass (306 tests)2001: 58.2% pass (383 tests)2002: 56.6% pass (470 tests)2003: 54.3% pass (435 tests)2004: 52.5% pass (408 tests)2005: 55.0% pass (300 tests)2006: 57.1% pass (212 tests)2007: 55.3% pass (253 tests)2008: 58.4% pass (298 tests)2009: 58.7% pass (380 tests)2010: 61.9% pass (462 tests)2011: 56.8% pass (437 tests)2012: 66.9% pass (239 tests)199820052012
RegisteredTestsFirst-time passvs model (57.3%)
1998 59 54.2% -3.1 pp
1999 120 57.5% +0.2 pp
2000 306 57.2% -0.1 pp
2001 383 58.2% +0.9 pp
2002 470 56.6% -0.7 pp
2003 435 54.3% -3.0 pp
2004 408 52.5% -4.8 pp
2005 300 55.0% -2.3 pp
2006 212 57.1% -0.2 pp
2007 253 55.3% -2.0 pp
2008 298 58.4% +1.1 pp
2009 380 58.7% +1.4 pp
2010 462 61.9% +4.6 pp
2011 437 56.8% -0.5 pp
2012 239 66.9% +9.6 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 · 2005–2025
44%60%75%2005: 64.6% pass (127 tests)2006: 56.7% pass (476 tests)2007: 55.9% pass (528 tests)2008: 49.3% pass (438 tests)2009: 52.3% pass (281 tests)2010: 52.4% pass (212 tests)2011: 51.5% pass (241 tests)2012: 54.7% pass (267 tests)2013: 60.4% pass (288 tests)2014: 55.1% pass (345 tests)2015: 59.6% pass (349 tests)2016: 58.5% pass (275 tests)2017: 67.0% pass (218 tests)2018: 55.2% pass (143 tests)2019: 66.7% pass (123 tests)2020: 66.1% pass (118 tests)2021: 65.5% pass (113 tests)2022: 68.6% pass (86 tests)2023: 69.7% pass (66 tests)2024: 65.2% pass (46 tests)2025: 54.5% pass (33 tests)20052025

Questions

Which YQ 50 Aerox years have the lowest MOT pass rate?
1998, 2003, 2004, 2005 registered examples pass first time less often than the Yamaha YQ 50 Aerox overall (57.3%); the 2004 cohort is lowest at 52.5% from 408 tests.
Which YQ 50 Aerox year has the highest MOT pass rate?
2012, at 66.9% of 239 first tests (2005–2025). Years more than two points above the model average: 2010, 2012.
How much does the YQ 50 Aerox pass rate vary by year?
14.4 percentage points between the highest (2012, 66.9%) and lowest (2004, 52.5%) 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: Yamaha YQ 50 Aerox reliability, failures and mileage · ranked #5295 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6