Britax is a leader in the car seat market. The Marathon ClickTight ARB (all-rear facing) is designed for children from 9 to 36 pounds and up to 50 inches tall. This seat is a good choice if your child weighs more than other convertible seats will allow.

The Marathon’s main selling point is its ease of use: you don’t have to wrestle with buckles or straps when installing or removing it from your vehicle–simply click in place! But there are other advantages as well: this model offers excellent crash protection thanks to its steel frame and side impact protection; plus, its five harness heights allow you plenty of room for growing kids’ bodies at different stages during their early years ( older kids/adults are less likely than younger children

The Box

The box is large, but it’s surprisingly lightweight. Setting up the seat is simple: remove it from the box, and open it.

The instructions are straightforward and they’re written clearly in English so there’s no need for any translations!


Installing the Britax Marathon ClickTight ARB is quick and easy. The seat easily clicks into place, and you can adjust it with one hand. This makes it perfect for grandparents who want an extra level of protection without having to invest in a complicated installation process.

Uninstalling the car seat is also simple–you just press down on the button at the top of your child’s headrest, lift him out and set him down safely on floor level or another surface away from traffic before removing him from his harness (if applicable).

Performance and Safety

The Britax Marathon ClickTight ARB is one of the safest convertible car seats on the market. It has side impact protection, which means that your child will be protected in a frontal crash. This seat has an anti-rebound bar, which helps keep children from being thrown out of their seats in a rear-end collision.

The steel frame is another important feature that makes this car seat so safe for children: it gives them extra support and prevents them from getting hurt by any hard parts inside your vehicle’s interior when you’re driving around corners at high speeds or braking suddenly (which can happen quite often).

Britax Marathon ClickTight ARB is one of the safest convertible car seats on the market.

The Britax Marathon ClickTight ARB is one of the safest convertible car seats on the market. The seat’s steel frame and reinforced shell help reduce side-impact forces by up to 30%.


The Marathon ClickTight ARB also comes with an easy installation system that allows you to get your child in and out of their seat quickly without any hassle. You don’t need any special tools for installation either!


  • Easy to install with ClickTight technology
  • Adjustable harness and headrest for comfortable fit
  • Integrated Anti-Rebound Bar for added safety
  • High weight and height limits for extended use
  • SafeCell impact protection system for enhanced safety


  • The seat is heavy and not very portable
  • The price point may be higher than some other car seats on the market
  • The cover is not machine-washable, and can be difficult to remove for cleaning
  • Some users may find the seat a bit narrow for larger children
  • The Anti-Rebound Bar adds extra bulk to the seat, which may be inconvenient for some vehicles.

Britax Marathon ClickTight ARB Review in Video

YouTube video


The Britax Marathon ClickTight ARB is one of the safest convertible car seats on the market. It has excellent crash test ratings and features a reinforced steel frame with an anti-rebound bar to keep your child safe.

The ClickTight system makes installation easy and allows you to adjust the seat belt tightness from your vehicle’s rear seats without having to get out or open any doors!

Frequently Asked Questions

How many years is the Britax Marathon ClickTight good for?

The Britax Marathon ClickTight car seat is good for 10 years from the date of manufacture. Once it has been used for a while, you should replace the cushion with a new one.

Cars seats have a limited life-span, and should be replaced after accidents or when their expiration date is reached.

Do you need the anti-rebound bar on Britax?

Yes, the anti-rebound bar on Britax car seats is an important safety feature that helps prevent the seat from rotating excessively in the event of a crash.

It is recommended that the anti-rebound bar be used whenever possible to provide optimal protection for your child.

Does the Britax Marathon have a rebound bar?

Yes, the Britax Marathon does have a rebound bar. The rebound bar is a safety feature that helps to protect the child in the event of a collision by reducing the movement of the car seat.

Does Britax Marathon ClickTight convert to booster?

Yes, the Britax Marathon ClickTight can convert to a booster seat. It can be used as a forward-facing harness seat for toddlers and young children, and later converted to a belt-positioning booster seat for older children, up to 120 pounds. This allows the seat to grow with your child and provide safe and comfortable seating throughout their development.

Convertible Car Seat Recommendations please?

When choosing a convertible car seat, you should consider such factors as the age and weight of your child, safety features like side impact protection and anti-rebound bar, ease of installation (either by clicking directly into most cars’ standard seats or with its own base) and overall quality/durability.

You should research and compare different brands of car seats before making your purchase, as well as consulting with a certified child passenger safety technician.

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