This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.
Congratulations! Your order qualifies for free shipping You are £50 away from free shipping.

Installation and aftercare included with every car seat purchase

Finance options available at checkout

Use code ACCESSORY for a 10% discount on accessories when purchased with a car seat!

Cart 0

Congratulations! Your order qualifies for free shipping You are £50 away from free shipping.
Sorry, looks like we don't have enough of this product.

Products
Pair with
Is this a gift?
Subtotal Free
View cart
Shipping, taxes, and discount codes are calculated at checkout
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your Cart is Empty

125cm Harnessed Car Seats

125cm Harnessed Car Seats

Extended safety, comfort, and peace of mind.

Our 125cm harnessed car seats are designed to keep your child safely harnessed for longer — typically all the way up to around 6 or 7 years old, depending on their height. These seats go beyond the legal minimums, offering extended harness use up to 125cm, which can provide added protection in the event of a collision.

At Car Seats Plus, we only stock harnessed seats that we trust — many of which are Swedish Plus Tested or allow for Extended Rear Facing. Whether you’re looking for a seat that offers flexibility between rear and forward facing, or you want to keep your child harnessed as long as possible before transitioning to a high back booster, you’ll find trusted brands and expert-approved options here.

Need help choosing?

We know every child, car, and family is different. If you're local to our showroom in Fakenham, Norfolk, then you can book a fitting appointment or get in touch — we’ll help you find the perfect fit.

Filters

Availability
Price
 
 
 
£
-
£
Brand
Product type
Colour
Avionaut Stardust 360
Avionaut Stardust 360
Avionaut Stardust 360
Avionaut Stardust 360
Avionaut Stardust 360
Avionaut Stardust 360
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Britax Max-Safe Pro 2
Sale
BeSafe Stretch
BeSafe Stretch
BeSafe Stretch
BeSafe Stretch
BeSafe Stretch
BeSafe Stretch
Sale
Axkid Minikid 4 Max
Axkid Minikid 4 Max
Axkid Minikid 4 Max
Axkid Minikid 4 Max
Axkid Minikid 4 Max
Sale
Axkid One3
Axkid One3
Axkid One3
Axkid One3
Axkid One3

Axkid One3

£650.00
 
Axkid Minikid 4 Pro
Axkid Minikid 4 Pro
Axkid Minikid 4 Pro
Axkid Minikid 4 Pro
Sale
BeSafe Stretch B
BeSafe Stretch B
BeSafe Stretch B
Avionaut Sky Q Smart
Avionaut Sky Q Smart
Sale
Avionaut Sky Airflow
Avionaut Sky Airflow
Avionaut Sky Airflow
Avionaut Sky Airflow
Avionaut Sky Airflow
Avionaut Sky Airflow
BeSafe Beyond 360
BeSafe Beyond 360
BeSafe Beyond 360
BeSafe Beyond 360
BeSafe Beyond 360
BeSafe Beyond 360
 

Axkid One+3

£725.00
 
BeSafe Beyond
BeSafe Beyond
BeSafe Beyond
BeSafe Beyond