BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Harley-Davidson FLH: MOT pass rate by registration year

Which FLH years pass first time, and which fall short of the model's 89.5% average, from 1,942 DVSA tests.

1997
highest-passing year · 96.9%
1990
lowest-passing year · 75.0%
21.9pp
spread across 14 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 (96.9% of 64 tests). Lowest: 1990 (75.0% of 56). Years more than two points below the model average: 1972, 1979, 1990.

71%85%100%1967: 87.5% pass (64 tests)1971: 93.5% pass (139 tests)1972: 87.1% pass (70 tests)1975: 92.9% pass (98 tests)1976: 88.4% pass (112 tests)1977: 92.7% pass (124 tests)1978: 89.6% pass (125 tests)1979: 87.0% pass (108 tests)1980: 90.3% pass (113 tests)1981: 88.8% pass (116 tests)1990: 75.0% pass (56 tests)1994: 88.7% pass (53 tests)1995: 90.9% pass (66 tests)1997: 96.9% pass (64 tests)196719791997
RegisteredTestsFirst-time passvs model (89.5%)
1967 64 87.5% -2.0 pp
1971 139 93.5% +4.0 pp
1972 70 87.1% -2.4 pp
1975 98 92.9% +3.4 pp
1976 112 88.4% -1.1 pp
1977 124 92.7% +3.2 pp
1978 125 89.6% +0.1 pp
1979 108 87.0% -2.5 pp
1980 113 90.3% +0.8 pp
1981 116 88.8% -0.7 pp
1990 56 75.0% -14.5 pp
1994 53 88.7% -0.8 pp
1995 66 90.9% +1.4 pp
1997 64 96.9% +7.4 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 · 2006–2023
77%88%100%2006: 88.2% pass (119 tests)2007: 95.2% pass (105 tests)2008: 88.7% pass (106 tests)2009: 88.0% pass (100 tests)2010: 87.4% pass (103 tests)2011: 81.1% pass (127 tests)2012: 92.3% pass (117 tests)2013: 91.2% pass (125 tests)2014: 89.7% pass (136 tests)2015: 91.3% pass (160 tests)2016: 89.5% pass (172 tests)2017: 87.6% pass (161 tests)2018: 92.9% pass (99 tests)2019: 91.7% pass (72 tests)2020: 97.6% pass (42 tests)2021: 82.7% pass (52 tests)2022: 90.9% pass (44 tests)2023: 89.2% pass (37 tests)20062023

Questions

Which FLH years have the lowest MOT pass rate?
1972, 1979, 1990 registered examples pass first time less often than the Harley-Davidson FLH overall (89.5%); the 1990 cohort is lowest at 75.0% from 56 tests.
Which FLH year has the highest MOT pass rate?
1997, at 96.9% of 64 first tests (2005–2025). Years more than two points above the model average: 1971, 1975, 1977, 1997.
How much does the FLH pass rate vary by year?
21.9 percentage points between the highest (1997, 96.9%) and lowest (1990, 75.0%) 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: Harley-Davidson FLH reliability, failures and mileage · ranked #1113 of 5428 models· other Harley-Davidson models: XLH 883, Flstf, Flstc, XL, XL1200C, XL883