hearts-suit
SITS Fav SEAT

Britax Marathon ClickTight

The Britax Marathon was recently discontinued as Britax slims down their product offerings. But it is still in stock at this time, and it's a seat that has a lot of great features! We especially love the simple seat belt installation, the tall harness height, and how compact front to back this seat is. 

Seat is good for you if:
  • You have a small backseat.
  • You have a tall child.
  • You want a car seat that is easy to install.
Use caution if you:
  • You have a vehicle with non-removable headrests.
  • You need to fit 3 people in one row of the vehicle.
Stand-out features:
  • SafeWash fabric option is flame-retardant free
  • Lock-off
Buy Now: 
SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Britax
Marathon ClickTight
Buy Now

Our Review of the 

Britax Marathon ClickTight

The Britax Marathon was recently discontinued as Britax slims down their product offerings. But it is still in stock at this time, and it's a seat that has a lot of great features! We especially love the simple seat belt installation, the tall harness height, and how compact front to back this seat is. 

Age

Our recommendation: From birth until it's outgrown, between 5-6 years

Type

A convertible car seat that can be used rear-facing and forward-facing

When

From birth

Buy Now: 
SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Britax
Marathon ClickTight
Buy Now
Michelle sitting in a chair reading a book.

Stand Out Features of this Car Seat

SafeWash fabric option is flame-retardant free

Britax is moving over to all flame retardantfree fabrics. But until the other fabric options are out of stock, make sure to choose a version with SafeWash fabric if this is important to you.

Lock-off

The ClickTight panel functions as a seat belt lock-off. It is very easy to use and allows caregivers to quickly get a tight installation in their vehicle.

Seat is good for you if 

hearts-suit

You have a small backseat.

When it comes to rear-facing convertible car seats, space can be a major concern. Whether you have a tall front seat occupant, a small backseat, or both, the Britax Marathon’s 7-position recline options can offer a space-saving profile for older kids! 

hearts-suit

You have a tall child.

This is where the Marathon‘s harness height comes in. Many of our other favorite convertible car seats have the tallest harness setting in the 17-18″ range. But the Marathon‘s is 19.5″. A school-age child’s torso grows roughly an inch per year, so that extra harness height can mean extra longevity out of your child’s convertible car seat!

hearts-suit

You want a car seat that is easy to install.

When it comes to easy, straightforward, wrestle-free car seat installation, ClickTight is about as good as it gets! Britax’s innovative ClickTight technology both tightens and locks the vehicle seatbelt for you. All you have to do is thread the vehicle seatbelt through the correct belt path, buckle it in, gently remove any obvious slack, and close the ClickTight panel. 

hearts-suit

You want a car seat with a seat belt lock-off.

This seat has a seat belt lock-off. So it can be a good option in vehicles older than 1996 that don’t have locking seat belts or need to be installed in international vehicles.

No items found.

Use caution if

c-warning

You have a vehicle with non-removable headrests.

If your vehicle has non-removable headrests, we do not recommend buying this seat. It may not be compatible in the forward-facing mode. You can check this post for car seat options that do work with non-removable headrests.

c-warning

You need to fit 3 people in one row of the vehicle.

However, in some mid-sized or large cars, the Marathon can work in a three-across setup! The ClickTight panel makes it easy to shift the car seat closer to the vehicle door during installation, saving valuable space in that center seat — so in some vehicles, it can work, especially if it’s combined with narrower car seats. All in all, it’s not a seat we’d purchase if we’re shopping for a three-across configuration, but in some cases, it does work well!

c-warning

Quirks to be aware of

c-question

V-Shaped Tether

The top tether should always be used when a child is forward-facing. Britax’s top tethers are v-shaped instead of the typical top tether design. Generally this kind of top tether will go around both sides of the vehicle’s headrest.

c-question

c-question

Child Fit Information

Installation Information

airplane

Airplane Use

The Britax Marathon is an FAA-approved car seat. At 28 pounds, it is one of the heaviest options available. If traveling internationally, this seat has a belt lock-off, so it will work well. For help with all things airplane travel and car seats, check out our Wheels Up Course and private Facebook group.

Videos

This carseat does not have any videos yet.

SITS Bottom Line

As long as your vehicle has removable headrests and you don’t need to fit 3 across in your vehicle, it’s likely a great option for you. It’s easy to install, which makes it great for any caregiver, even older ones who may have trouble getting a tight installation with other car seats. It’s a long-lasting option as well thanks to the high harness height.

Buy Now: 
SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Britax
Marathon ClickTight
Buy Now

Similar Car Seats

Advocate ClickTight
Version
Britax
0
% OFF
hearts-suit
Safe in the Seat textmark in black letters

Notable differences:

20.5" wide

Specifications

Britax

Marathon ClickTight

Product Information

Weight: 28lbs

Width: 18"

Highest Harness Height: 18.5"

Rear Facing Limits

Height: 49"

Weight: 5-40lbs

Head Height Rules: at least 1″ below the top of the headrest

Lower Anchor Connectors Weight Limit: 35lbs

Forward-Facing Limits

Height: 49"

Weight: 20-65lbs

Head Height Rules: ears must be below the top of the headrest

Lower Anchor Connectors Weight Limit: 40lbs

No Back Booster Limits

Highest Belt Guide Settings

High Back Booster Limits

Other Important Details

Newborn Fit

Fits from birth

Expiration Limit

10 years

Crash Replacement Policy

Replace after a moderate or severe crash

Harness

No-rethread

Lock-off

Yes

Vehicle Seat Protector

This brand does not permit a vehicle seat protector.