BIKERELIABILITY Reg check
League table/ YAMAHA/ CW50/By year
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha CW50: MOT pass rate by registration year

Which CW50 years pass first time, and which fall short of the model's 71.2% average, from 3,788 DVSA tests.

1991
highest-passing year · 79.0%
2000
lowest-passing year · 63.6%
15.4pp
spread across 17 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: 1991 (79.0% of 162 tests). Lowest: 2000 (63.6% of 225). Years more than two points below the model average: 1997, 1998, 1999, 2000, 2001, 2004, 2005.

61%71%82%1990: 77.9% pass (195 tests)1991: 79.0% pass (162 tests)1992: 74.3% pass (136 tests)1993: 77.2% pass (79 tests)1995: 77.3% pass (172 tests)1996: 76.2% pass (261 tests)1997: 65.0% pass (254 tests)1998: 64.9% pass (194 tests)1999: 65.1% pass (281 tests)2000: 63.6% pass (225 tests)2001: 68.6% pass (229 tests)2002: 72.2% pass (266 tests)2003: 71.3% pass (202 tests)2004: 68.7% pass (300 tests)2005: 68.9% pass (235 tests)2006: 76.9% pass (294 tests)2007: 71.5% pass (214 tests)199019992007
RegisteredTestsFirst-time passvs model (71.2%)
1990 195 77.9% +6.7 pp
1991 162 79.0% +7.8 pp
1992 136 74.3% +3.1 pp
1993 79 77.2% +6.0 pp
1995 172 77.3% +6.1 pp
1996 261 76.2% +5.0 pp
1997 254 65.0% -6.2 pp
1998 194 64.9% -6.3 pp
1999 281 65.1% -6.1 pp
2000 225 63.6% -7.6 pp
2001 229 68.6% -2.6 pp
2002 266 72.2% +1.0 pp
2003 202 71.3% +0.1 pp
2004 300 68.7% -2.5 pp
2005 235 68.9% -2.3 pp
2006 294 76.9% +5.7 pp
2007 214 71.5% +0.3 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 · 2005–2023
61%75%88%2005: 65.9% pass (132 tests)2006: 73.5% pass (475 tests)2007: 70.6% pass (374 tests)2008: 67.9% pass (343 tests)2009: 65.7% pass (364 tests)2010: 69.1% pass (350 tests)2011: 73.2% pass (298 tests)2012: 68.2% pass (261 tests)2013: 70.8% pass (233 tests)2014: 69.7% pass (195 tests)2015: 67.7% pass (167 tests)2016: 78.7% pass (127 tests)2017: 75.5% pass (102 tests)2018: 72.7% pass (55 tests)2019: 78.8% pass (52 tests)2020: 77.6% pass (49 tests)2021: 83.6% pass (61 tests)2022: 77.4% pass (53 tests)2023: 82.6% pass (46 tests)20052023

Questions

Which CW50 years have the lowest MOT pass rate?
1997, 1998, 1999, 2000, 2001, 2004, 2005 registered examples pass first time less often than the Yamaha CW50 overall (71.2%); the 2000 cohort is lowest at 63.6% from 225 tests.
Which CW50 year has the highest MOT pass rate?
1991, at 79.0% of 162 first tests (2005–2025). Years more than two points above the model average: 1990, 1991, 1992, 1993, 1995, 1996, 2006.
How much does the CW50 pass rate vary by year?
15.4 percentage points between the highest (1991, 79.0%) and lowest (2000, 63.6%) 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 CW50 reliability, failures and mileage · ranked #4640 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6