Model report · 2005–2025
77.6%
first-time pass rate
13.2%
failed outright
7,010
median miles at test
219
MOT tests, 2005–2025
What fails on a TT
failure defects by component group · advisories excluded
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
34 | 39.1 |
| brakes |
|
14 | 16.1 |
| tyres and wheels |
|
10 | 11.5 |
| lamps and reflectors |
|
10 | 11.5 |
| fuel and exhaust |
|
4 | 4.6 |
| drive system |
|
4 | 4.6 |
| tyres |
|
4 | 4.6 |
| suspension |
|
3 | 3.4 |
| steering and suspension |
|
2 | 2.3 |
| reg plates and vin |
|
2 | 2.3 |
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 TT beats 1 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).
KAWASAKI
ZX-6R
78.1% pass · 174k tests
SUZUKI
GSF600
77.3% pass · 143k tests
YAMAHA
FZS600
82.6% pass · 137k tests
SUZUKI
SV650S
80.6% pass · 84.6k 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 TT.