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Cybex Sirona SX2 i-Size Car Seat

  • From 61cm to 105cm (approx. 3 months to 4 years)
  • 360° rotating seat
  • Extended rear-facing
NOW £269.96 INC VAT £257.10 EX VAT

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Product Details

Car Seat Features

  • Rearward facing - 61cm to 105cm
  • Forward-facing - 76cm to 105cm
  • Suitable from birth with separate newborn inlay
  • ISOFIX fitting
  • Multiple recline positions
  • Advanced Linear Side-impact Protection (L.S.P.)
  • Cybex ER-Tech
  • Built-in rebound bar
  • 3-Year warranty when registered
  • Need help? Read our Car Seat Guide

About this Car Seat

Installation of the car seat is easy to do thanks to the one-click with the ISOFIX connectors and the visual indicator means it’s easy to see if it has been installed correctly and safely. Then simply extend the leg and you are good to go.

Once the seat is installed, a simple press of a button allows you to rotate the seat. Place the seat in the entry/exit position, facing the door, to allow you to place your child in the seat easily and without breaking your back. 

Don't forget, this seat is extended rear-facing, meaning that you can leave your child rear-facing all the way up to 105cm (approx. 4 years old) as experts advise this is the safest way for them to travel.

The Sirona SX2 features special Energy Reduction Technology, which helps to reduce the strain on your child's neck if they are facing forwards and the vehicle is involved in a head-on collision. It works with an innovative harness design that reduces the forces on the neck by up to 20% compared to other harness systems. 

The seat also features integrated Advanced Linear Side Impact Protection – these are small arms that automatically flick out and work in conjunction with the energy-absorbing shell of the seat to reduce those harmful forces by up to 25%. 

The seat has a height-adjustable headrest - it moves up to 12 positions, growing as your little one does and the seat also reclines on the base to 5 positions when rearward facing and to 3 positions when forward-facing. For practicality, the Sirona SX2 has a belt holder at the sides to hold the harness out of the way whilst you put your child in the seat.

A separately sold newborn insert is available and will allow the seat to be used from birth.

Fitting instructions, cover removal instructions and other technical information can be found in the manufacturer's instruction manual, located here

For further technical information or advice, please email your enquiry to our Child Seat experts - [email protected] or telephone the team direct on +44 (0)1978 667903


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Customer Reviews
Delivery & Returns

UK Mainland Delivery Prices

Delivery Type Cost Estimated Delivery Time
Standard Delivery from £1.33 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)
Express Delivery from £1.68 1-2 working days from day of despatch(Excludes weekends and Bank Holidays)
Special Delivery from £12.54 For any next working day delivery order before 4.30pm Monday to Thursday.
For any weekend delivery order before 4.30pm Friday
Click & Collect from £7.62 Collect your parcel from a local post office. 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)

For international shipping please visit our delivery page.

For information about returning an item please visit our returns page.


Our Payment Options

Maestro Mastercard Visa PayPal V12 Retail Finance

Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.

Finance Options

In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.

D.T.(Automotives) Limited T/A Demon Tweeks is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance and Klarna. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.