BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha WR450: MOT pass rate by registration year

Which WR450 years pass first time, and which fall short of the model's 77.2% average, from 838 DVSA tests.

2005
highest-passing year · 89.8%
2007
lowest-passing year · 74.6%
15.2pp
spread across 5 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: 2005 (89.8% of 59 tests). Lowest: 2007 (74.6% of 59). Years more than two points below the model average: 2007.

72%82%93%2003: 76.4% pass (254 tests)2004: 79.6% pass (206 tests)2005: 89.8% pass (59 tests)2007: 74.6% pass (59 tests)2008: 79.5% pass (88 tests)200320052008
RegisteredTestsFirst-time passvs model (77.2%)
2003 254 76.4% -0.8 pp
2004 206 79.6% +2.4 pp
2005 59 89.8% +12.6 pp
2007 59 74.6% -2.6 pp
2008 88 79.5% +2.3 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 · 2007–2023
55%77%100%2007: 95.1% pass (41 tests)2008: 79.5% pass (44 tests)2009: 62.8% pass (43 tests)2010: 79.2% pass (48 tests)2011: 69.2% pass (52 tests)2012: 76.0% pass (50 tests)2013: 86.3% pass (51 tests)2014: 73.8% pass (65 tests)2015: 77.0% pass (61 tests)2016: 82.4% pass (51 tests)2017: 77.1% pass (48 tests)2018: 76.5% pass (34 tests)2019: 69.7% pass (33 tests)2020: 75.8% pass (33 tests)2021: 77.5% pass (40 tests)2022: 78.1% pass (32 tests)2023: 71.8% pass (39 tests)20072023

Questions

Which WR450 years have the lowest MOT pass rate?
2007 registered examples pass first time less often than the Yamaha WR450 overall (77.2%); the 2007 cohort is lowest at 74.6% from 59 tests.
Which WR450 year has the highest MOT pass rate?
2005, at 89.8% of 59 first tests (2005–2025). Years more than two points above the model average: 2004, 2005, 2008.
How much does the WR450 pass rate vary by year?
15.2 percentage points between the highest (2005, 89.8%) and lowest (2007, 74.6%) 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 WR450 reliability, failures and mileage · ranked #4033 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6