KTM 640 vs Honda VFR800 Fi

The Honda VFR800 Fi passes its MOT first time more often than the KTM 640: 86.7% vs 83.2%, a 3.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	KTM 640	Honda VFR800 Fi
First-time pass rate	83.2%	86.7%
Outright fail rate	8.4%	8.5%
Vs comparable bikes (age & mileage adjusted)	-2.7 pts	+4.5 pts
Engine size	625cc	781cc
Rank among all models	#2911 of 5428	#1985 of 5428
Median miles at test	10,553	26,212
MOT tests analysed	2,463	89,421
Most common failure	lighting and signalling	brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	KTM 640	Honda VFR800 Fi
Lights & signalling	5.6%	2.4%
Steering & suspension	2.7%	2.6%
Brakes	1.0%	3.2%
Tyres & wheels	1.3%	2.3%
Drive system	0.5%	0.4%
Fuel & exhaust	0.3%	0.5%
Structure & body	0.1%	0.4%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	KTM 640	Honda VFR800 Fi
2018	87.6%	86.1%
2019	88.9%	86.6%
2020	95.5%	87.0%
2021	86.3%	87.3%
2022	87.8%	87.1%
2023	89.6%	88.9%
2024	80.8%	88.9%
2025	77.4%	88.2%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	KTM 640	Honda VFR800 Fi
0k-10k miles	85.7%	92.5%
10k-20k miles	82.2%	89.4%
20k-30k miles	81.2%	87.3%
30k-40k miles	78.7%	85.5%
40k-50k miles	82.6%	83.5%

Bands with fewer than 30 tests for either bike are left out.

KTM 640 vs Honda VFR800 Fi FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the KTM 640 or the Honda VFR800 Fi?

The Honda VFR800 Fi passes its MOT first time more often than the KTM 640: 86.7% vs 83.2%, a 3.5-point lead. Adjusted for age, mileage and test class, the Honda VFR800 Fi still comes out ahead: -2.7 points vs comparable bikes for the KTM 640, +4.5 for the Honda VFR800 Fi. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the KTM 640 fail its MOT on most?

Lights & signalling: 5.6% of KTM 640 MOT tests failed on it, then steering & suspension (2.7%).

What does the Honda VFR800 Fi fail its MOT on most?

Brakes: 3.2% of Honda VFR800 Fi MOT tests failed on it, then steering & suspension (2.6%).

Which holds up better at high mileage, the KTM 640 or the Honda VFR800 Fi?

They are level: at 40k-50k miles the KTM 640 passes 82.6% first time and the Honda VFR800 Fi 83.5%.

KTM 640 83.2% pass · 2,463 tests HONDA VFR800 FI 86.7% pass · 89.4k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.