Pass rate over time
The 400LC4-E's first-time pass rate has risen 2.9 points since 2006, 77.1% to 80.0%.
What fails on a 400LC4-E
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
83 | 38.6 | 1.8× |
| steering and suspension |
|
29 | 13.5 | 1.3× |
| tyres and wheels |
|
26 | 12.1 | 1.5× |
| reg plates and vin |
|
23 | 10.7 | 4.7× |
| brakes |
|
18 | 8.4 | 0.7× |
| lamps and reflectors |
|
10 | 4.7 | 0.9× |
| drive system |
|
9 | 4.2 | 1.6× |
| body and structure |
|
8 | 3.7 | 2.4× |
| Identification of the vehicle |
|
5 | 2.3 | 4.2× |
| suspension |
|
4 | 1.9 | 0.8× |
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 400LC4-E beats 0 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).
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 400LC4-E.
Pass rate by registration year
Best year to buy used: 2001 (78.0% pass). Weakest: 2004 (70.0%).
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.
KTM 400LC4-E FAQ
Is the KTM 400LC4-E reliable?
The KTM 400LC4-E is less reliable than average for its class: 75.6% of its 521 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4230 of 5426 models.
What does a 400LC4-E fail its MOT on most?
lighting and signalling — 39% of all defects recorded against failed 400LC4-E tests.
What is the best year of 400LC4-E to buy used?
By first-time pass rate, 2002-registered examples do best (78.0%) and 2004 worst (70.0%). Condition and history still trump the year.