BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Honda CB400: MOT pass rate by registration year

Which CB400 years pass first time, and which fall short of the model's 80.9% average, from 9,072 DVSA tests.

1997
highest-passing year · 86.8%
1990
lowest-passing year · 63.2%
23.6pp
spread across 25 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: 1997 (86.8% of 477 tests). Lowest: 1990 (63.2% of 87). Years more than two points below the model average: 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1998, 2002.

58%75%92%1971: 81.7% pass (71 tests)1975: 84.9% pass (411 tests)1976: 85.0% pass (654 tests)1977: 86.6% pass (761 tests)1978: 85.1% pass (689 tests)1979: 86.7% pass (249 tests)1980: 82.9% pass (199 tests)1981: 84.3% pass (70 tests)1982: 81.4% pass (59 tests)1989: 72.3% pass (242 tests)1990: 63.2% pass (87 tests)1991: 70.8% pass (137 tests)1992: 73.6% pass (891 tests)1993: 77.6% pass (1,339 tests)1994: 78.5% pass (797 tests)1995: 80.7% pass (548 tests)1996: 77.2% pass (276 tests)1997: 86.8% pass (477 tests)1998: 77.4% pass (155 tests)1999: 86.1% pass (245 tests)2000: 84.6% pass (149 tests)2001: 83.0% pass (94 tests)2002: 77.1% pass (105 tests)2003: 79.4% pass (68 tests)2004: 84.6% pass (65 tests)197119922004
RegisteredTestsFirst-time passvs model (80.9%)
1971 71 81.7% +0.8 pp
1975 411 84.9% +4.0 pp
1976 654 85.0% +4.1 pp
1977 761 86.6% +5.7 pp
1978 689 85.1% +4.2 pp
1979 249 86.7% +5.8 pp
1980 199 82.9% +2.0 pp
1981 70 84.3% +3.4 pp
1982 59 81.4% +0.5 pp
1989 242 72.3% -8.6 pp
1990 87 63.2% -17.7 pp
1991 137 70.8% -10.1 pp
1992 891 73.6% -7.3 pp
1993 1,339 77.6% -3.3 pp
1994 797 78.5% -2.4 pp
1995 548 80.7% -0.2 pp
1996 276 77.2% -3.7 pp
1997 477 86.8% +5.9 pp
1998 155 77.4% -3.5 pp
1999 245 86.1% +5.2 pp
2000 149 84.6% +3.7 pp
2001 94 83.0% +2.1 pp
2002 105 77.1% -3.8 pp
2003 68 79.4% -1.5 pp
2004 65 84.6% +3.7 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
71%83%94%2005: 83.1% pass (160 tests)2006: 79.9% pass (760 tests)2007: 80.4% pass (658 tests)2008: 82.1% pass (663 tests)2009: 76.3% pass (658 tests)2010: 74.9% pass (626 tests)2011: 78.1% pass (620 tests)2012: 79.9% pass (592 tests)2013: 79.6% pass (593 tests)2014: 80.3% pass (600 tests)2015: 79.2% pass (542 tests)2016: 82.3% pass (498 tests)2017: 84.5% pass (439 tests)2018: 86.0% pass (272 tests)2019: 86.7% pass (226 tests)2020: 87.6% pass (193 tests)2021: 86.7% pass (240 tests)2022: 85.8% pass (225 tests)2023: 90.4% pass (197 tests)2024: 79.1% pass (148 tests)2025: 86.4% pass (162 tests)20052025

Questions

Which CB400 years have the lowest MOT pass rate?
1989, 1990, 1991, 1992, 1993, 1994, 1996, 1998, 2002 registered examples pass first time less often than the Honda CB400 overall (80.9%); the 1990 cohort is lowest at 63.2% from 87 tests.
Which CB400 year has the highest MOT pass rate?
1997, at 86.8% of 477 first tests (2005–2025). Years more than two points above the model average: 1975, 1976, 1977, 1978, 1979, 1981, 1997, 1999, 2000, 2001, 2004.
How much does the CB400 pass rate vary by year?
23.6 percentage points between the highest (1997, 86.8%) and lowest (1990, 63.2%) 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: Honda CB400 reliability, failures and mileage · ranked #3398 of 5428 models· other Honda models: CBR600F, CBR900RR, CBR1100XX, CB500, C90, VFR800 Fi