BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Kawasaki Zephyr 550: MOT pass rate by registration year

Which Zephyr 550 years pass first time, and which fall short of the model's 77.9% average, from 7,405 DVSA tests.

1999
highest-passing year · 90.5%
2000
lowest-passing year · 71.4%
19.1pp
spread across 11 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: 1999 (90.5% of 169 tests). Lowest: 2000 (71.4% of 63). Years more than two points below the model average: 1990, 1992, 2000.

68%81%94%1990: 73.0% pass (89 tests)1991: 77.7% pass (1,874 tests)1992: 75.6% pass (1,260 tests)1993: 76.3% pass (1,216 tests)1994: 76.6% pass (789 tests)1995: 80.6% pass (581 tests)1996: 78.5% pass (508 tests)1997: 80.2% pass (496 tests)1998: 83.5% pass (340 tests)1999: 90.5% pass (169 tests)2000: 71.4% pass (63 tests)199019952000
RegisteredTestsFirst-time passvs model (77.9%)
1990 89 73.0% -4.9 pp
1991 1,874 77.7% -0.2 pp
1992 1,260 75.6% -2.3 pp
1993 1,216 76.3% -1.6 pp
1994 789 76.6% -1.3 pp
1995 581 80.6% +2.7 pp
1996 508 78.5% +0.6 pp
1997 496 80.2% +2.3 pp
1998 340 83.5% +5.6 pp
1999 169 90.5% +12.6 pp
2000 63 71.4% -6.5 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
69%81%94%2005: 76.8% pass (112 tests)2006: 76.1% pass (687 tests)2007: 77.0% pass (614 tests)2008: 76.8% pass (600 tests)2009: 72.9% pass (569 tests)2010: 78.1% pass (521 tests)2011: 76.1% pass (518 tests)2012: 76.5% pass (446 tests)2013: 74.2% pass (419 tests)2014: 75.4% pass (382 tests)2015: 80.2% pass (339 tests)2016: 79.2% pass (298 tests)2017: 80.9% pass (303 tests)2018: 81.3% pass (208 tests)2019: 80.4% pass (209 tests)2020: 83.0% pass (188 tests)2021: 83.5% pass (212 tests)2022: 78.1% pass (219 tests)2023: 81.1% pass (217 tests)2024: 82.9% pass (170 tests)2025: 89.7% pass (174 tests)20052025

Questions

Which Zephyr 550 years have the lowest MOT pass rate?
1990, 1992, 2000 registered examples pass first time less often than the Kawasaki Zephyr 550 overall (77.9%); the 2000 cohort is lowest at 71.4% from 63 tests.
Which Zephyr 550 year has the highest MOT pass rate?
1999, at 90.5% of 169 first tests (2005–2025). Years more than two points above the model average: 1995, 1997, 1998, 1999.
How much does the Zephyr 550 pass rate vary by year?
19.1 percentage points between the highest (1999, 90.5%) and lowest (2000, 71.4%) 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: Kawasaki Zephyr 550 reliability, failures and mileage · ranked #3931 of 5428 models· other Kawasaki models: ZX-6R, ZX-9R, ZZR600, ER5, ZZ-R1100, ZX