BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Triumph T100: MOT pass rate by registration year

Which T100 years pass first time, and which fall short of the model's 88.8% average, from 5,424 DVSA tests.

1955
highest-passing year · 94.0%
2003
lowest-passing year · 78.1%
15.9pp
spread across 31 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: 1955 (94.0% of 151 tests). Lowest: 2003 (78.1% of 128). Years more than two points below the model average: 1961, 1964, 1967, 1971, 2002, 2003, 2006, 2010, 2011.

75%86%97%1954: 91.5% pass (106 tests)1955: 94.0% pass (151 tests)1956: 87.4% pass (95 tests)1957: 93.2% pass (118 tests)1958: 90.2% pass (123 tests)1959: 90.8% pass (119 tests)1960: 90.6% pass (192 tests)1961: 82.7% pass (133 tests)1962: 89.9% pass (138 tests)1963: 92.6% pass (68 tests)1964: 82.1% pass (78 tests)1965: 86.9% pass (176 tests)1966: 89.8% pass (305 tests)1967: 86.4% pass (264 tests)1968: 88.7% pass (311 tests)1969: 88.8% pass (484 tests)1970: 92.2% pass (398 tests)1971: 86.3% pass (300 tests)1972: 89.3% pass (112 tests)1973: 88.0% pass (75 tests)2002: 82.9% pass (82 tests)2003: 78.1% pass (128 tests)2004: 92.3% pass (233 tests)2005: 87.1% pass (124 tests)2006: 84.3% pass (127 tests)2007: 90.8% pass (131 tests)2008: 93.8% pass (130 tests)2009: 92.9% pass (98 tests)2010: 86.4% pass (66 tests)2011: 86.3% pass (95 tests)2012: 88.2% pass (76 tests)195419692012
RegisteredTestsFirst-time passvs model (88.8%)
1954 106 91.5% +2.7 pp
1955 151 94.0% +5.2 pp
1956 95 87.4% -1.4 pp
1957 118 93.2% +4.4 pp
1958 123 90.2% +1.4 pp
1959 119 90.8% +2.0 pp
1960 192 90.6% +1.8 pp
1961 133 82.7% -6.1 pp
1962 138 89.9% +1.1 pp
1963 68 92.6% +3.8 pp
1964 78 82.1% -6.7 pp
1965 176 86.9% -1.9 pp
1966 305 89.8% +1.0 pp
1967 264 86.4% -2.4 pp
1968 311 88.7% -0.1 pp
1969 484 88.8% +0.0 pp
1970 398 92.2% +3.4 pp
1971 300 86.3% -2.5 pp
1972 112 89.3% +0.5 pp
1973 75 88.0% -0.8 pp
2002 82 82.9% -5.9 pp
2003 128 78.1% -10.7 pp
2004 233 92.3% +3.5 pp
2005 124 87.1% -1.7 pp
2006 127 84.3% -4.5 pp
2007 131 90.8% +2.0 pp
2008 130 93.8% +5.0 pp
2009 98 92.9% +4.1 pp
2010 66 86.4% -2.4 pp
2011 95 86.3% -2.5 pp
2012 76 88.2% -0.6 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
83%88%93%2005: 87.7% pass (73 tests)2006: 90.9% pass (386 tests)2007: 87.2% pass (375 tests)2008: 84.5% pass (406 tests)2009: 89.8% pass (403 tests)2010: 87.5% pass (432 tests)2011: 88.1% pass (429 tests)2012: 89.4% pass (433 tests)2013: 87.8% pass (385 tests)2014: 91.2% pass (385 tests)2015: 91.5% pass (364 tests)2016: 90.3% pass (340 tests)2017: 85.9% pass (327 tests)2018: 90.1% pass (141 tests)2019: 89.9% pass (99 tests)2020: 87.0% pass (77 tests)2021: 91.0% pass (89 tests)2022: 91.4% pass (81 tests)2023: 87.0% pass (77 tests)2024: 91.2% pass (57 tests)2025: 90.8% pass (65 tests)20052025

Questions

Which T100 years have the lowest MOT pass rate?
1961, 1964, 1967, 1971, 2002, 2003, 2006, 2010, 2011 registered examples pass first time less often than the Triumph T100 overall (88.8%); the 2003 cohort is lowest at 78.1% from 128 tests.
Which T100 year has the highest MOT pass rate?
1955, at 94.0% of 151 first tests (2005–2025). Years more than two points above the model average: 1954, 1955, 1957, 1963, 1970, 2004, 2008, 2009.
How much does the T100 pass rate vary by year?
15.9 percentage points between the highest (1955, 94.0%) and lowest (2003, 78.1%) 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: Triumph T100 reliability, failures and mileage · ranked #1332 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird