YAMAHA YZ 450 F

450cc Petrol Class 2

#3291 of 5426 overall #206 of 409 YAMAHAs #2095 of 2787 other bikes

81.4%

first-time pass rate

12.8%

failed outright

772

median miles at test

430

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2017

The YZ 450 F's first-time pass rate has risen 1.5 points since 2013, 74.3% to 75.8%.

What fails on a YZ 450 F

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	36	23.2
steering and suspension	34	21.9
lamps and reflectors	19	12.3
tyres and wheels	14	9
brakes	11	7.1
suspension	10	6.5
reg plates and vin	10	6.5
fuel and exhaust	9	5.8
tyres	7	4.5
Identification of the vehicle	5	3.2

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the YZ 450 F beats 2 of its 4 closest rivals (KAWASAKI ER5, YAMAHA XV535, SUZUKI GS500).

KAWASAKI ER5 77.4% pass · 53.1k tests YAMAHA XV535 82.7% pass · 48.1k tests SUZUKI GS500 76.4% pass · 44.9k tests SUZUKI AN400 86.2% pass · 27.1k tests

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 YZ 450 F.

Pass rate by registration year

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

Best year to buy used: 2003 (84.6% pass). Weakest: 2003 (84.6%).

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.