BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Moto Guzzi 850 T3: MOT pass rate by registration year

Which 850 T3 years pass first time, and which fall short of the model's 84.2% average, from 1,156 DVSA tests.

1980
highest-passing year · 87.3%
1981
lowest-passing year · 81.9%
5.4pp
spread across 6 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: 1980 (87.3% of 204 tests). Lowest: 1981 (81.9% of 94). Years more than two points below the model average: 1981.

81%85%88%1976: 86.4% pass (191 tests)1977: 83.3% pass (210 tests)1978: 83.6% pass (177 tests)1979: 84.4% pass (141 tests)1980: 87.3% pass (204 tests)1981: 81.9% pass (94 tests)197619791981
RegisteredTestsFirst-time passvs model (84.2%)
1976 191 86.4% +2.2 pp
1977 210 83.3% -0.9 pp
1978 177 83.6% -0.6 pp
1979 141 84.4% +0.2 pp
1980 204 87.3% +3.1 pp
1981 94 81.9% -2.3 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 · 2006–2019
71%83%96%2006: 87.3% pass (79 tests)2007: 88.0% pass (75 tests)2008: 80.8% pass (73 tests)2009: 87.7% pass (81 tests)2010: 91.5% pass (82 tests)2011: 82.7% pass (81 tests)2012: 86.7% pass (83 tests)2013: 75.3% pass (85 tests)2014: 81.1% pass (90 tests)2015: 80.5% pass (82 tests)2016: 83.5% pass (85 tests)2017: 76.7% pass (90 tests)2018: 86.7% pass (45 tests)2019: 83.8% pass (37 tests)20062019

Questions

Which 850 T3 years have the lowest MOT pass rate?
1981 registered examples pass first time less often than the Moto Guzzi 850 T3 overall (84.2%); the 1981 cohort is lowest at 81.9% from 94 tests.
Which 850 T3 year has the highest MOT pass rate?
1980, at 87.3% of 204 first tests (2005–2025). Years more than two points above the model average: 1976, 1980.
How much does the 850 T3 pass rate vary by year?
5.4 percentage points between the highest (1980, 87.3%) and lowest (1981, 81.9%) 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: Moto Guzzi 850 T3 reliability, failures and mileage · ranked #2690 of 5428 models· other Moto Guzzi models: California, Breva, V7, Griso, V11, Le Mans