YAMAHA WR450
Pass rate over time
The WR450's first-time pass rate has fallen 23.3 points since 2007, 95.1% to 71.8%.
What fails on a WR450
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
69 | 30.1 | 1.1× |
| lamps and reflectors |
|
36 | 15.7 | 1.3× |
| steering and suspension |
|
27 | 11.8 | 0.9× |
| tyres and wheels |
|
22 | 9.6 | 0.9× |
| brakes |
|
22 | 9.6 | 0.4× |
| suspension |
|
17 | 7.4 | 1.8× |
| reg plates and vin |
|
15 | 6.6 | 2.7× |
| Identification of the vehicle |
|
8 | 3.5 | 3.6× |
| drive system |
|
7 | 3.1 | 1.0× |
| audible warning (Horn) |
|
6 | 2.6 | 3.9× |
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
On first-time pass rate the WR450 beats 1 of its 4 closest rivals (KAWASAKI ER5, YAMAHA XV535, SUZUKI GS500).
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 WR450.
Pass rate by registration year
Best year to buy used: 2005 (89.8% pass). Weakest: 2007 (74.6%).
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 WR450 FAQ
Is the YAMAHA WR450 reliable?
The YAMAHA WR450 is less reliable than average for its class: 77.2% of its 838 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4032 of 5426 models.
What does a WR450 fail its MOT on most?
lighting and signalling — 30% of all defects recorded against failed WR450 tests.
What is the best year of WR450 to buy used?
By first-time pass rate, 2005-registered examples do best (89.8%) and 2007 worst (74.6%). Condition and history still trump the year.