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KTM

RC 390 2023

Track: Slovakia Ring

Back to Slovakia RingTaken over from the track: Asphalt · Fast · Technical · dry

KTM RC 390 2023 - 75 kg, Intermediate, Neutral, Slovakia Ring

Set this first

Most important change

Shock: Rebound

Stock value
3 clicks
Recommended
5 clicks
Change
2 clicks softer than stock

clicks out from fully closed

Reason: condition Slovakia Ring

How to test it: Change Rebound only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.

Key values

9 confirmed settings available.

Source

Released reference setup, editorially reviewed · Moderately documented

Referenced (not linked):
  • KTM RC 390 owner's manual + OEM stock gearing (15/45, 520)

Last reviewed: 29 Jul 2026

All recommended changes

In order, biggest deviation from the stock value first. Take them one at a time.

  1. Shock: Rebound2 clicks softer than stock

    3 clicks5 clicksclicks out from fully closed

    Reason: condition Slovakia Ring

    How to test it

    Change Rebound only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.

  2. Fork: Rebound2 clicks softer than stock

    15 clicks17 clicksclicks out from fully closed

    Reason: condition Slovakia Ring

    How to test it

    Change Rebound only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.

  3. Transmission: Rear sprocket1 tooth less than stock

    45 teeth44 teeth

    Reason: condition Slovakia Ring

    How to test it

    Change Rear sprocket only, nothing else. Then ride the same section or the same number of laps as before and watch whether exactly the behaviour that bothers you changes. If it gets worse or less settled, put the value back.

All technical values

Complete settings, technical data, components, gearing and geometry - including the adjusters that exist on the bike but do not carry a confirmed value yet.

9 confirmed values
ChainOEM Chain
Chain length112 linksOEM
ClutchOEM Wet Slipper Clutch
ECUOEM Engine Management
ForkWP APEX 43 mm Open-Cartridge Fork
Compressionclicks out from fully closed15 clickscomputed
Reboundclicks out from fully closed17 clicks +2computed
HandlebarOEM Handlebar
ShockWP APEX Monoshock
Preload3 mmOEM
Reboundclicks out from fully closed5 clicks +2computed
SwingarmOEM Aluminium Swingarm
TireContinental ContiRoad
Front tire pressure2 bar (29.01 psi)OEM
Rear tire pressure2 bar (29.01 psi)OEM
TransmissionOEM Final Drive
Front sprocket15 teethOEM
Rear sprocket44 teeth -1computed

After the ride

Tested a change? Record what happened. LAISA stores it against this bike and this condition. The recommendation above does not adapt to it automatically yet.

About this baseline

For a 75 kg Intermediate rider with a Neutral style, the baseline for the KTM RC 390 2023 at Slovakia Ring shifts 3 of 9 computed settings away from the OEM standard. The biggest shifts: Rebound 5 clicks (+2 vs OEM), Rebound 17 clicks (+2 vs OEM). All values are computed from OEM defaults and your rider and condition factors.

Value provenance: OEM = manufacturer specification · verified = confirmed by an expert · reviewed = editorially reviewed reference · community = confirmed by the community (median of at least three public setups) · computed = automatically derived by the LAISA engine. Automatically extracted and unconfirmed values never appear on public pages.

Next steps

Dial in your riding technique

Skills that change how the bike behaves - often the real fix before any clicker.

Explore technique

Matching protective gear

The right setup is half the job - the other half is protective gear matched to the discipline and conditions.

Gear for these conditions

Upgrades that fit

Optional aftermarket parts for this bike - the setup above comes first, these are next.

Tirelikely fit
Metzeler Metzeler Sportec M7 RR ( 120/60 ZR17 TL (55W) M/C, Vorderrad )
Tirelikely fit
Dunlop Dunlop Sportmax D207 ( 180/55 ZR18 TL (74W) Hinterrad, M/C )
Tirelikely fit
Kenda Kenda KM1 ( 190/50 R17 TL 73W )
Tirelikely fit
Continental Continental ContiRaceAttack 2 Street ( 190/55 ZR17 TL (75W) Hinterrad, M/C )
See more parts that fit
Set it up like a pro

Get it professionally dialed in - find a coach or a track day.

Find coaching

Setups for this bike

1 setups

Reference setups

Verified factory and expert setups.
ReferenceOEM Factory Baseline - KTM RC 390 2023AI
RaceTrackdayDryWetDampCold tarmacHot tarmac
Front sprocket15 teeth
Rear sprocket45 teeth
Compoundmedium

Related

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Matching tracks

Ahvenisto Race Circuit (Kanta-Häme)Anderstorp Raceway (Jönköping County)Anglesey Circuit (Isle of Anglesey, Wales)Anneau du Rhin (Grand Est (Haut-Rhin))Autodrom Most (Ústí nad Labem Region)Autodromo Enzo e Dino Ferrari Imola (Emilia-Romagna)Autodromo Internazionale del Mugello (Tuscany)Autodromo Nazionale di Monza (Lombardei)

Comparisons

vs Honda CBR1000RR-R Fireblade SP 2024vs Suzuki GSX-R 1000R 2020vs BMW M1000RR 2020vs Kawasaki Ninja ZX-6R 2018vs Ducati Panigale Superleggera V4 2023vs Yamaha R9 2025

Frequently asked questions

What tire pressure is recommended for the KTM RC 390 2023?

As a starting point: 2 bar front, 2 bar rear - computed for a 75 kg Intermediate rider. Check cold and adjust in small steps by feel.

What gearing (sprockets) does the KTM RC 390 2023 run?

As a starting point, 15 teeth front / 44 teeth rear. For more acceleration go larger at the rear (or smaller at the front); for more top speed, the reverse.

Are these values safe to ride?

Baseline values are starting points generated from OEM defaults, rider weight, skill, style and conditions - not safety guarantees. Verify on the bike, adjust step by step and ride within your limits.

Baseline values are starting points generated from OEM defaults, rider weight, skill, style, and condition - or lifted from an expert/verified setup where one exists (see the provenance badge). They are not safety guarantees. Verify on the bike and ride within your limits.

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