YAMAHA TTR600
Pass rate over time
The TTR600's first-time pass rate has fallen 11.6 points since 2006, 81.6% to 70.0%.
Pass rate by mileage
A low-mileage TTR600 passes first time 84.5% of the time; by 20k that's 73.0%.
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 TTR600
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
56 | 50.5 |
| steering and suspension |
|
14 | 12.6 |
| brakes |
|
14 | 12.6 |
| reg plates and vin |
|
6 | 5.4 |
| tyres and wheels |
|
5 | 4.5 |
| lamps and reflectors |
|
5 | 4.5 |
| drive system |
|
4 | 3.6 |
| Items Not Tested |
|
3 | 2.7 |
| driving controls |
|
2 | 1.8 |
| fuel and exhaust |
|
2 | 1.8 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the TTR600 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 TTR600.
Pass rate by registration year
Best year to buy used: 2004 (81.6% pass). Weakest: 2000 (79.5%).
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.