Est. 1998 · Kart racing · United Kingdom

British Championship Winning Team

Going the extra mile to support you and your motorsport career. Race weekend support, engine work and tuition from a family team that has been in the paddock since 1998.

A Klaassen Motorsport driver sitting in a number 1 ARC kart, holding up one finger.
17 ‘O’ Plate wins
6 British Champions
3 ‘E’ Plate wins
1 ‘GP’ Plate win

Classes we run

Six classes, three engine families

Junior TKM and TKM Extreme, IAME X30 Junior and Senior, Rotax Junior Max and Senior Max. We carry the spares and we know the tyres. Any other class: ask, and you will get a straight answer.

A Rotax-powered Klaassen Motorsport kart in fluorescent yellow and blue, race number 26.

Rotax

  • Junior Max
  • Senior Max
A black and silver ARC chassis running in Formula TKM, race number 95.

TKM

  • Junior TKM
  • TKM Extreme
An IAME-powered ARC kart with a green number 52 plate, driver sitting in the kart behind it.

IAME X30

  • X30 Junior
  • X30 Senior

Photographs from the Klaassen Motorsport team archive.

Running something else? Contact us and see how we can help.

Who runs it

David and Ashley Klaassen

David is the third generation born and bred into the karting world. He started Klaassen Motorsport in 1998, and the team is still run by husband and wife.

A long list of success stories later, the point has not changed: share what we know, and get you further up the sheet than you managed last time out.

  • Multiple championship winning team
  • All experience levels welcome, novice or champion
  • Safeguarding training completed with Motorsport UK
David and Ashley Klaassen with their driver and the kart, celebrating a win at the NKC 2026 championship, trophy and number one plate held up.
David and Ashley with their driver, NKC 2026. Photo: team archive.

On track

A season in the paddock

An ARC chassis in Klaassen Motorsport blue and silver, race number 69, turning in.
A Klaassen Motorsport TKM kart, race number 29, on track in bright sunshine.
A Klaassen Motorsport ARC kart, race number 6, running on a dry circuit.
A pack of karts running nose to tail out of a corner.

Photographs from the Klaassen Motorsport team archive.

Services offered

Ten things we can take off your hands

Everything below is available to team drivers. Most of it is available to anyone who asks, whichever colours you run in.

01

Arrive & Drive

Turn up to the circuit with your suit, boots and helmet, and drive.

02

Awning space

Run out of our awning and benefit from our experienced team members.

03

Carb rebuilds

Keep the engine strong with a clean and properly set up carburettor.

04

Driver tuition

Improve your skills with our experience and data analysis.

05

Dyno work

Want to test your motor and carbs? Let us help you out.

06

Engine hire

Need an engine for a weekend? Come and see what we have to offer.

07

Engine rebuild

Is your engine tired and worn out? We’ll get that sorted for you.

08

Kart hire

Is your kart out of action? Hire one from us for the day or the weekend.

09

Kart prep

Let our experienced team prepare your kart for your next outing.

10

Kart storage

Nowhere to keep the kart between meetings? We can store it for you.

Who we work with

Chassis, parts and governing body

Motorsport UK

David and Ashley closely follow the recommendations and guidance of Motorsport UK, especially on safeguarding, with all training completed through Motorsport UK.

ARC Chassis

David’s own chassis design, built in Italy from 30 mm tubing to TKM specification, and a strong performer in IAME X30 and Rotax Max too. You are never required to run one.

Righetti Ridolfi

Our team partner and kart parts supplier in Italy, which is how spare components reach our team members quickly and at a fair price.

Latest news

From the paddock

  • New website

    David and Ashley welcome you to the new Klaassen Motorsport website, and explain what changed after the old one went offline.

    Read more

There is space in the team for you

Novice or champion, the conversation starts the same way. Call David or Ashley, or send a message and we will come back to you. We aim to reply within 48 hours, a little slower if we are at a race meeting.