KTM 640 LC4-E

625cc Petrol Class 2

#3459 of 5426 overall #146 of 230 KTMs #2206 of 2787 other bikes

80.6%

first-time pass rate

10.0%

failed outright

7,836

median miles at test

8,115

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The 640 LC4-E's first-time pass rate has fallen 1.5 points since 2006, 84.0% to 82.5%.

Pass rate by mileage

how the 640 LC4-E's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage 640 LC4-E passes first time 81.9% of the time; by 30k that's 85.4%.

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 640 LC4-E

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	618	34.8	1.1×
lamps and reflectors	231	13	1.0×
steering and suspension	192	10.8	0.7×
reg plates and vin	181	10.2	2.9×
tyres and wheels	181	10.2	1.0×
brakes	153	8.6	0.4×
drive system	101	5.7	1.3×
fuel and exhaust	48	2.7	0.7×
structure and attachments	38	2.1	0.5×
Identification of the vehicle	35	2	1.9×

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

same type, similar capacity, high test volume

On first-time pass rate the 640 LC4-E beats 2 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 HONDA VFR800 FI 86.7% pass · 89.4k 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 640 LC4-E.

Pass rate by registration year

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

Best year to buy used: 2008 (88.9% pass). Weakest: 1999 (73.0%).

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 640 LC4-E FAQ

answers computed from the data above · terms in the glossary

Is the KTM 640 LC4-E reliable?

The KTM 640 LC4-E is less reliable than average for its class: 80.6% of its 8,115 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3459 of 5426 models.

What does a 640 LC4-E fail its MOT on most?

lighting and signalling — 35% of all defects recorded against failed 640 LC4-E tests.

What is the best year of 640 LC4-E to buy used?

By first-time pass rate, 2008-registered examples do best (88.9%) and 1999 worst (73.0%). Condition and history still trump the year.

How many miles will a 640 LC4-E last?

The median 640 LC4-E shows 7,836 miles at test, and examples around 30k miles still pass 85.4% of the time — mileage alone rarely kills one.