Target hot 12.8 PSI
Tyre pressures
A cold-to-hot log for every corner, plus pressure advice for your compound, conditions and tyre-life projection.
4
Corners advised
12.8
Target hot PSI
55%
Track grip
Live: weather, gear and grip
AVB RaceLabs: karting race engineering
Your pit wall.
In your
pocket.
Tyre pressures, gearing, ballast and grip, calculated for your kart, your track and the day’s conditions. Built on engineering calculations, not guesswork. And when you want to understand a recommendation, ask your AI Race Engineer.
Founding members Save 30% for your first 12 months. Join early access to reserve your place; your code arrives on launch day.
Reserve my place01 / What it does
Your setup, worked out.
Not guessed.
- Tyre pressure
- Tyre temperature
- Gear ratio
- Rollout
- Total weight
- Ballast position
- Chassis setup
- Class minimum
- Corners
- Straights
- Braking zones
- Track length
- Air temperature
- Track temperature
- Grip
- Wind
- Rain
- + You
A good lap starts with getting the kart set up properly. Dozens of variables pull against each other: tyre pressures and temperatures, gear ratio, total weight and where the ballast sits, chassis setup, the shape of the track and the weather changing through the day. Get the setup wrong and you could lose time, wear tyres unnecessarily or struggle with handling that doesn’t feel right.
AVB RaceLabs brings these factors together to calculate recommendations for your session. It combines your kart, class and weight with the track’s real geometry (every corner, straight and braking zone) and the weather for your session: air and track temperature, grip, wind and rain. It uses engineering calculations to estimate tyre pressure changes, track grip and suitable gearing, alongside ballast and chassis setup guidance.
The result is a setup starting point tailored to your kart, track and conditions, ready before you head out. So when the flag drops, the difference is you. Your AI Race Engineer explains the reasoning behind the recommendations, so you understand what to change and why.
01
Premium
Brain
Tyres, gearing, setup, grip and ballast calls for your kart, track and session.
Explore 02 FreePit Kit
Calculators, checklists and journals that work at the track with no signal.
Explore 03 Pro with AIAI Race Engineer
Ask why, not just what. It knows your session, your tyres and your setup.
Explore 04 TeamsTeam workspace
Roster, kit, entries, workshop and driver invoicing for the whole outfit.
Explore02 / The calls
Worked out for your kart,
not copied from a forum.
Target hot 12.8 PSI
15% straights · run 81T
Gearing
Ratio, rollout and top speed with a ±1 tooth comparison, plus sprockets ranked against your track with confidence.
81T
Recommended
6.75
Gear ratio
122
Top speed km/h
Track 14.8°C · grip 4.7/10
Weather window
Track temperature, estimated grip, rain and drying conditions for your session, used in tyre and gearing recommendations.
4.7
Grip score /10
14.8°
Track temp
47
Wind gust km/h
1,900+
Tracks
22
Kart classes
69
Tyres
59
Engines
03 / Race morning
Example session
Club round,
qualifying
10.4PSI cold
78TRear sprocket
+2.0Kg ballast
4.7Grip /10
How it works
- 01Add your kartChassis, engine, class, setupOnce
- 02Pick the sessionTrack, date and timeEach event
- 03Get the callsTyres, gearing, ballast, gripBefore you go out
- 04Ask whyYour AI Race EngineerAny time
- 05Log the seasonPit Kit journals, offlineAll season
04 / Who it's for
Everyone
under the awning.
Cadet to senior, club to national. One app for the driver, the parent with the spanners and the team manager.
#01
Drivers
Better setup decisions
Setup baselines for every session and a record of the whole season.
#02
Parents
Ready for race day
Pressures, gearing, scrutineering and kit expiry, sorted on race morning. Free on a team.
#03
Team managers
Run the outfit
Roster, kit, entries, workshop and driver invoicing in one place.
05 / Plans
Start free.
Get race-ready.
Free
The logbook and the toolbox. Free forever.
£0/ month
- Tracks and sessions
- Engine, tyre, chassis and track research catalogues
- Pit Kit: every offline tool (journal limits apply)
- Access to the mobile app and its Free-plan features
- Engineering baselines
- Predictive analytics
- Cloud sync
- Web portal
Premium
Where the engineering starts.
From£9/ month
£9 when you belong to a team, £14 a month on your own.
- Everything in Free
- Engineering baselines: tyres, gears, chassis, grip, setup, ballast
- Session weather window, feeding every call
- Lap-performance estimates based on your session data
- Pit Kit cloud sync: unlimited history, every limit lifted, restore on a new phone
- Web portal at portal.avbracelabs.com
- Priority support
- AI Race Engineer
Pro with AI
Premium plus the AI Race Engineer.
From£24/ month
£24 when you belong to a team, £29 a month on your own.
- Everything in Premium
- AI Race Engineer chat, 150 asks a day
- AI explanations alongside engineering recommendations
- AI-assisted tyre condition assessment from photos
Prices in pounds, US dollars or euros. Checkout charges the currency you pick here.
Running a team?
Team plans,
priced by drivers.
Parents, mechanics and coaches are always free. Drivers on a banded team can take Premium for £9. Team plans are bought and managed on the web portal.
See team plans
The book
The Race Engineer's
Logbook.
One season of karting on paper: 12 events, 60 sessions, tyres, setup, conditions and results, with the paddock formulas worked through. A 220-page A5 paperback on Amazon.
06 / Pit-wall Q&A
Straight questions,
straight answers.
Is there a free trial?
Yes. Try any paid plan free for 14 days: Premium, Pro with AI or a team band. The trial starts when you choose the plan and give your card details, and you are charged after 14 days unless you cancel before then. One trial per person. Free stays free, with no card.
Can I cancel any time?
Yes. Every plan, team bands included, is monthly with no fixed term. Move down from a paid plan and you keep what you paid for until the end of that month. Team plans are bought, changed and cancelled on the web portal.
Can team members pay the team manager through the app?
Not inside the app: AVB never handles team money and takes no cut. The manager raises charges and invoices in the app, and each member sees what they owe and the team's payment details there. You pay the team directly, for example by bank transfer, and the manager marks it as paid, so both sides can see the balance.
What happens to my data if I move down a plan?
Your existing data is retained, subject to the account and data-retention policy. Sessions, setups and Pit Kit journals stay. On Free, journal limits only hold back new entries; you can still open and edit everything.
Do parents, mechanics or coaches have to pay?
No. On a team they are free and unlimited. Team bands count drivers only.
Find the tenth
before the flag.
Start with the free Pit Kit, use it offline at the track and move to Premium or Pro when you need more.