BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha TTR 600 Re: MOT pass rate by registration year

Which TTR 600 Re years pass first time, and which fall short of the model's 84.2% average, from 1,749 DVSA tests.

2005
highest-passing year · 85.3%
2003
lowest-passing year · 81.1%
4.2pp
spread across 3 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: 2005 (85.3% of 491 tests). Lowest: 2003 (81.1% of 338). Years more than two points below the model average: 2003.

80%83%86%2003: 81.1% pass (338 tests)2004: 84.4% pass (863 tests)2005: 85.3% pass (491 tests)200320042005
RegisteredTestsFirst-time passvs model (84.2%)
2003 338 81.1% -3.1 pp
2004 863 84.4% +0.2 pp
2005 491 85.3% +1.1 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 · 2007–2025
76%86%95%2007: 82.4% pass (108 tests)2008: 84.8% pass (145 tests)2009: 81.9% pass (144 tests)2010: 84.4% pass (128 tests)2011: 86.8% pass (114 tests)2012: 84.2% pass (114 tests)2013: 81.9% pass (116 tests)2014: 79.6% pass (103 tests)2015: 80.0% pass (105 tests)2016: 86.5% pass (96 tests)2017: 87.3% pass (79 tests)2018: 80.0% pass (65 tests)2019: 85.3% pass (68 tests)2020: 92.3% pass (52 tests)2021: 89.6% pass (67 tests)2022: 86.7% pass (60 tests)2023: 86.2% pass (58 tests)2024: 87.8% pass (49 tests)2025: 83.7% pass (49 tests)20072025

Questions

Which TTR 600 Re years have the lowest MOT pass rate?
2003 registered examples pass first time less often than the Yamaha TTR 600 Re overall (84.2%); the 2003 cohort is lowest at 81.1% from 338 tests.
Which TTR 600 Re year has the highest MOT pass rate?
2005, at 85.3% of 491 first tests (2005–2025).
How much does the TTR 600 Re pass rate vary by year?
4.2 percentage points between the highest (2005, 85.3%) and lowest (2003, 81.1%) 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: Yamaha TTR 600 Re reliability, failures and mileage · ranked #2690 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6