BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Triumph T90: MOT pass rate by registration year

Which T90 years pass first time, and which fall short of the model's 89.8% average, from 1,189 DVSA tests.

1968
highest-passing year · 92.2%
1967
lowest-passing year · 88.0%
4.2pp
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: 1968 (92.2% of 179 tests). Lowest: 1967 (88.0% of 200).

87%90%93%1963: 89.4% pass (94 tests)1964: 91.7% pass (229 tests)1965: 89.1% pass (220 tests)1966: 91.6% pass (166 tests)1967: 88.0% pass (200 tests)1968: 92.2% pass (179 tests)1969: 92.0% pass (50 tests)196319661969
RegisteredTestsFirst-time passvs model (89.8%)
1963 94 89.4% -0.4 pp
1964 229 91.7% +1.9 pp
1965 220 89.1% -0.7 pp
1966 166 91.6% +1.8 pp
1967 200 88.0% -1.8 pp
1968 179 92.2% +2.4 pp
1969 50 92.0% +2.2 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 · 2006–2017
79%88%97%2006: 93.7% pass (95 tests)2007: 87.4% pass (87 tests)2008: 89.2% pass (83 tests)2009: 82.2% pass (90 tests)2010: 89.5% pass (95 tests)2011: 92.0% pass (87 tests)2012: 87.8% pass (98 tests)2013: 88.0% pass (100 tests)2014: 90.9% pass (110 tests)2015: 94.4% pass (107 tests)2016: 89.9% pass (99 tests)2017: 93.2% pass (88 tests)20062017

Questions

Which T90 years have the lowest MOT pass rate?
none: no registration year of the Triumph T90 falls more than two points under the model's 89.8% overall pass rate.
Which T90 year has the highest MOT pass rate?
1968, at 92.2% of 179 first tests (2005–2025). Years more than two points above the model average: 1968, 1969.
How much does the T90 pass rate vary by year?
4.2 percentage points between the highest (1968, 92.2%) and lowest (1967, 88.0%) 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: Triumph T90 reliability, failures and mileage · ranked #1025 of 5428 models· other Triumph models: Bonneville, Tiger, Sprint, Daytona, Speed Triple, Thunderbird