BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

YAMAHA TDM

849cc Petrol Class 2
80.8%
first-time pass rate
11.6%
failed outright
31,624
median miles at test
2,101
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The TDM's first-time pass rate has risen 4.3 points since 2006, 82.7% to 87.0%.

68%82%97%2006: 82.7% pass (150 tests)2007: 80.0% pass (140 tests)2008: 83.5% pass (133 tests)2009: 80.7% pass (135 tests)2010: 81.3% pass (134 tests)2011: 81.1% pass (143 tests)2012: 72.6% pass (135 tests)2013: 79.1% pass (134 tests)2014: 79.3% pass (135 tests)2015: 77.6% pass (134 tests)2016: 78.4% pass (102 tests)2017: 80.6% pass (103 tests)2018: 85.9% pass (71 tests)2019: 75.3% pass (73 tests)2020: 77.4% pass (62 tests)2021: 90.0% pass (70 tests)2022: 80.3% pass (66 tests)2023: 87.9% pass (66 tests)2024: 92.0% pass (50 tests)2025: 87.0% pass (46 tests)20062025

Pass rate by mileage

how the TDM's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage TDM passes first time 87.6% of the time; by 50k that's 76.4%.

74%82%90%0k: 87.6% pass (113 tests)10k: 82.0% pass (300 tests)20k: 81.4% pass (533 tests)30k: 79.3% pass (522 tests)40k: 81.6% pass (282 tests)50k: 76.4% pass (182 tests)0k30k50k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a TDM

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
122 25.1 1.0×
brakes
120 24.7 1.1×
steering and suspension
82 16.9 1.1×
tyres and wheels
45 9.3 1.0×
drive system
32 6.6 1.6×
lamps and reflectors
28 5.8 0.6×
fuel and exhaust
22 4.5 1.3×
structure and attachments
14 2.9 0.8×
suspension
12 2.5 0.7×
body and structure
9 1.9 0.9×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the TDM beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the TDM.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1999 (85.7% pass). Weakest: 1994 (72.0%).

69%79%88%1991: 74.8% pass (282 tests)1992: 84.3% pass (159 tests)1993: 80.9% pass (89 tests)1994: 72.0% pass (182 tests)1995: 74.6% pass (185 tests)1996: 82.0% pass (484 tests)1997: 82.5% pass (292 tests)1998: 82.9% pass (170 tests)1999: 85.7% pass (56 tests)199119951999

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

YAMAHA TDM FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA TDM reliable?

The YAMAHA TDM is less reliable than average for its class: 80.8% of its 2,101 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3420 of 5426 models.

What does a TDM fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed TDM tests.

What is the best year of TDM to buy used?

By first-time pass rate, 1999-registered examples do best (85.7%) and 1994 worst (72.0%). Condition and history still trump the year.

How many miles will a TDM last?

The median TDM shows 31,624 miles at test, and examples around 50k miles still pass 76.4% of the time — mileage alone rarely kills one.