BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha CW 50 NG: MOT pass rate by registration year

Which CW 50 NG years pass first time, and which fall short of the model's 65.2% average, from 871 DVSA tests.

2005
highest-passing year · 72.5%
2000
lowest-passing year · 60.8%
11.7pp
spread across 7 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 (72.5% of 51 tests). Lowest: 2000 (60.8% of 125). Years more than two points below the model average: 1999, 2000.

58%67%75%1998: 64.4% pass (104 tests)1999: 62.3% pass (122 tests)2000: 60.8% pass (125 tests)2001: 70.8% pass (89 tests)2002: 66.3% pass (160 tests)2003: 64.0% pass (136 tests)2005: 72.5% pass (51 tests)199820012005
RegisteredTestsFirst-time passvs model (65.2%)
1998 104 64.4% -0.8 pp
1999 122 62.3% -2.9 pp
2000 125 60.8% -4.4 pp
2001 89 70.8% +5.6 pp
2002 160 66.3% +1.1 pp
2003 136 64.0% -1.2 pp
2005 51 72.5% +7.3 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 · 2005–2013
53%64%74%2005: 66.7% pass (30 tests)2006: 64.7% pass (156 tests)2007: 70.6% pass (119 tests)2008: 66.1% pass (118 tests)2009: 64.6% pass (96 tests)2010: 62.1% pass (66 tests)2011: 59.7% pass (67 tests)2012: 56.5% pass (62 tests)2013: 69.2% pass (39 tests)20052013

Questions

Which CW 50 NG years have the lowest MOT pass rate?
1999, 2000 registered examples pass first time less often than the Yamaha CW 50 NG overall (65.2%); the 2000 cohort is lowest at 60.8% from 125 tests.
Which CW 50 NG year has the highest MOT pass rate?
2005, at 72.5% of 51 first tests (2005–2025). Years more than two points above the model average: 2001, 2005.
How much does the CW 50 NG pass rate vary by year?
11.7 percentage points between the highest (2005, 72.5%) and lowest (2000, 60.8%) 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 CW 50 NG reliability, failures and mileage · ranked #5008 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6