Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx

Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx
Updated on : May 7, 2013
Category : Car Seats
List Price: : $ 289.99
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Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx

Britax Marathon 70 Convertible Vehicle Seat (Previous Version), Onyx

  • The Britax Marathon 70 convertible vehicle seat is designed for young children rear facing from five to 40 pounds and forward facing up to 70 pounds
  • Safecell technology features safecells made to compress in a crash, substantially lowering the center of gravity and counteracting the forward rotation of the child seat which generally propels youngster toward the front seat
  • Integrated Steel Bars strengthen the connection to the car and minimize forward flexing of the kid seat during a crash
  • Side Effect Protection comprised of deep side walls lined with power-absorbing EPP foam distributes crash forces, shields from vehicle intrusion and includes the head, neck and physique
  • Quick-adjust harness repositions the harness shoulder height with no disassembling the harness straps

The BRITAX MARATHON 70 Convertible Car Seat achieves optimum head safety via the mixture of BRITAX SafeCell Technologies, integrated steel bars, and a Versa-Tether, which function with each other to minimize head excursion and lessen the risk of head injury throughout a frontal influence. It also characteristics effortless installation, Side Influence Protection, and revolutionary details for your child’s comfort and safety. The seat fits children in the rear-facing position weighing from five to 40 pounds, and youngsters in the forward-facing position starting at a single year old and 20 pounds, up to 70 pounds.

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MARATHON 70 (Onyx)
Convertible Automobile Seat

At a Glance:

  • Age/Weight Needs: In rear-
    facing position, fits youngsters weighing 5 – 40 pounds in forward-facing position, fits young children 1+ years old weighing 20 – 70 pounds

  • Warranty: 1-year
    restricted warranty
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Britax Marathon 70 Convertible Car Seat

Obtainable in (from left to proper):
Onyx, Crimson, Waverly,
Cowmooflage, Blueprint, and Allison.

Britax Marathon 70 Convertible Car Seat
Safety features incorporate SafeCell Technologies and Accurate Side Effect Protection.
View larger.
Britax Marathon 70 Convertible Car Seat
Comfort functions incorporate dual recline positions and higher-density comfort foam.
(Shown here in Allison.) View bigger.

BRITAX 360 Degree Protection
The BRITAX MARATHON 70 features technologies that function to decrease injury to your kid in the course of a crash from any direction, like each frontal and side effect crashes – the most frequent kinds of crashes. These technologies function collectively with other characteristics on the automobile seat to reduce injury to your kid in the course of a crash by:

  • maintaining your youngster in the car,
  • diverting crash forces away from your kid,
  • assisting to slow down your child’s body,
  • minimizing movement of your youngster, and
  • defending your child’s brain and spinal cord.

SafeCell Technology for Advanced Head Security
Designed with SafeCell Technologies, the MARATHON 70 functions SafeCells, which are engineered structures located in the base of the seat created to compress in the event of a crash. This compression drastically lowers the center of gravity and counteracts the forward rotation of the vehicle seat, delivering unprecedented performance in a crash.

The MARATHON 70 also attributes integrated steel bars, which strengthen the connection to the automobile seat and lessen the forward flexing of the vehicle seat. In addition, the power-absorbing Versa-Tether anchors the top of the vehicle seat and minimizes forward rotation of the vehicle seat to reduce the crash forces that can attain your child if an accident happens. These 3 attributes perform with each other as a technique to give revolutionary head safety protection for your child.

Side Influence Protection for Added Safety
To keep your child protected in the event of a side-influence collision, the MARATHON 70 involves Side Effect Protection. Side Effect Protection is a system composed of a rigid seat shell with deep side walls and energy-absorbing EPP (Expanded Polypropylene) foam lining the seat shell. These combined characteristics function with each other to shield your child’s head and chest from incoming crash forces by distributing the forces over a larger surface region, helping shield your child from vehicle intrusion and contain your child’s head and body in the seat.

Premium Fit and Comfort Characteristics
Whether children are watching the world go by or snuggling in for a nap, they’ll take pleasure in that the MARATHON 70 reclines in each the forward and rear positions. And thanks to additional functions, which contain higher-density comfort foam and a plush cover set with a matching belly pad, they will often ride in style and comfort. A 70-pound weight capacity, two buckle positions, and a tangle-totally free five-point harness with ten harness-height settings offer a snug, custom fit for your growing kid. Plus, an optional Infant Positioning Insert (sold separately) allows you to correctly and snugly fit smaller infants into the car seat.

Ease-of-Use for Safety and Convenience
Packed with perks for parents, the MARATHON 70 makes it effortless to safe your youngster in the suitable position with no guesswork. Premium reduce LATCH connectors make for a fast, basic, and tight installation, even though the push-button allows you to simply uninstall the connectors. Straightforward-to-access constructed-in lock-offs enable you to install the automobile seat with ease using your vehicle’s lap and shoulder belt. The fast-adjust harness method and buckle enable you to reposition the harness height without having disassembling the harness straps.

Moreover, an anti-slip contoured base grips and protects the automobile seat, guaranteeing a tight installation in all varieties of vehicles. Practical holders keep harness straps out of the way when you are placing your kid in the seat, and the plush cover set with matching pads removes simply for cleaning without having requiring you to disassemble or uninstall the vehicle seat.

The BRITAX MARATHON 70 Convertible Vehicle Seat is backed by a 1-year restricted warranty.

What is in the Box
One BRITAX MARATHON 70 Convertible Vehicle Seat and manual.


Removing the cover from the BRITAX MARATHON 70-G3 Convertible Car Seat. **Refer to your user guide for full installation instructions.

"This Best Selling Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx Tends to SELL OUT VERY FAST! If this is a MUST HAVE product, be sure to Order Now at Amazon.com!"



What customers say about Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx

  1. Kristen Stewart says:
    127 of 134 people found the following review helpful
    5.0 out of 5 stars
    Another Great Britax Carseat!, August 15, 2010
    By 
    Kristen Stewart (Midtown Memphis) –
    (VINE VOICE)
      
    (REAL NAME)
      

    This review is from: Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx (Baby Product)
    Customer review from the Amazon Vine™ Program (What’s this?)

    We’ve been using Britax’s older style Marathons for five years so I was anxious to try this latest manifestation to see how it stacked up. It is larger, but it now fits children up to 70 lbs forward facing (and 5-40 rear facing) and still fits easily in our Honda Odyssey and forward facing in our small VW Golf. Like the older Britax models, the new Marathon is often outgrown by height, rather than weight. I sat both of our children in it and found the difference to be slight, if any, over the old model, so if you are in the market for a new seat for child outgrowing the shell, this is probably not the best choice.

    The legendary Britax quality continues with a solid, intuitive build. Some of the newer head protecting technology from other, more expensive Britax seats has been integrated. The new harness adjuster is amazing, making it so simple and easy to change the height of the straps. We often carpool and I’m glad I can quickly and easily customize the seat to every child.

    Britax seats are always soft and comfortable for riders, so much so that my children notice the difference when they ride in other seats! My four year old gave this her seal of approval comfort-wise, declaring the new design even better than her old one.

    There are new spots to store latch clips when they are not in use that I love, most every change is a great improvement with the exception of the locking mechanisms for using a seat belt. They are MUCH harder to use than they were on the older model Marathons. I assume that they are also safer, but I had such a hard time with it, I could imagine parents using it incorrectly (and unsafely.)

    The instructions are clear and easy to follow, but take advantage of seat checks in your area to make sure you install it correctly and as secure as it can be. Britax is an industry leader in safety and innovation, and I am glad my girls (at 4.5 and 6) are still riding safely in 5 point harnesses and protected by their Britax seats in the event of a crash.

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  2. Jesse Baynard says:
    120 of 127 people found the following review helpful
    5.0 out of 5 stars
    A converted skeptic, August 5, 2010
    By 
    Jesse Baynard (Tampa, FL) –
    (VINE VOICE)
      
    (REAL NAME)
      

    This review is from: Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx (Baby Product)
    Customer review from the Amazon Vine™ Program (What’s this?)

    Overall I feel that all car seats properly installed provide an extraordinary level of protection that we never had as children. So I have bought all sorts of car seats between 2 kids and 2 cars from snap-in travel systems to boosters, and from economy models to plush models. This is what I found that separates them convenience and materials.

    The seats that cost less than $100 usually have little padding and are made from just enough plastic and foam as necessary. Pretty much all the adjustments are manual from shoulder height to anchor clips to strap length. The nice thing other than the price is that they are usually dead simple to install and very light.

    The seats that cost more than $100 but less than $200 are usually very well padded and come with a lot of conveniences such as reclining, cup holders, mechanical strap adjustments, extra weight maximums. They’re still usually plastic and foam, but a lot more of it. I do find that they can also be more difficult to work with, because with all their conveniences and padding the rare mechanical adjustments (installation and shoulder adjustments) are harder to perform. Also, I don’t feel that seats I have in this class are any safer than my economy seats just more comfortable.

    Now once we get over $200 we find ourselves in Britax Marathon 70 country… This is a very well appointed car seat in terms of comfortable padding, conveniences, and materials. You notice it’s different once you see the steel beams supporting it, then as you use it and find the shoulder height can be adjusted without rethreading while installed (which is also a breeze), and that the recline doesn’t require great force, and that there’s Velcro to hold the straps back if you want it to and many other small touches… it’s easy to start falling in love. Okay but that just brings me back to… Are we just buying the convenience or is there really something better about these seats? Well perhaps it’s all really good marketing, but I now feel that this construction and these more rigid (yet designed to yield appropriately) materials are providing better safety and that the fact that you do not need to uninstall it to make adjustments also lowers the chance for a bad reinstall. So yes, I think that once you pass the $200 mark you actually can buy a safer seat. On the other hand this one doesn’t come with cup holders ;).

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  3. Ed says:
    38 of 38 people found the following review helpful
    5.0 out of 5 stars
    Safest and Easiest To Use Marathon Yet, April 2, 2011
    By 
    Ed (San Francisco Bay Area) –
    (TOP 100 REVIEWER)
      

    This review is from: Britax Marathon 70 Convertible Car Seat (Previous Version), Onyx (Baby Product)

    Britax is one of the most trusted car seat manufacturer’s around. They have been making convertible car seats for the US market since 1997. Never satisfied, Britax continuously improves their products to make them safer, easier to use, and more comfortable. In August of 2010, they released their new line of convertible car seats with many improvements. Having been a Britax customer since 2007, I was excited to see the improvements they made.

    My Configuration:
    2000 Jetta 4DR
    Forward Facing
    LATCH Install

    PROS:
    - Supports up to 70lbs forward-facing, and 5-40lbs rear-facing
    - Supports infants with an infant positioning insert (sold separately)
    - MUCH improved/easier harness height adjustment
    - New integrated steel bars
    - Serial number located in easy to find location
    - Harness buckle can now be in two positions
    - Comfort pads now removable
    - Super easy LATCH installation
    - Certified for air travel
    - Consistently rated Very Good by Consumer Reports (though this model has not yet been tested by CR)

    CONS:
    - Expensive

    On March 21, 2011, the American Academy of Pediatrics updated their recommendations for car seats. They now recommend that children stay in the rear-facing position until the age of 2, rather than their previous recommendation of 20lbs and 1 year of age. You can read the full press release and recommendations HERE. With these new recommendations, getting a car seat with better height and weight ratings become more important. Obviously the AAP recommendations are only recommendations and if your child exceeds the limits of the car seat, it’s better to switch them to forward-facing even if not yet 2 years old. Put plainly, keep your child in the rear-facing position for as long as possible and resist the temptation to switch them too soon.

    SAFETY
    Safety is the most important feature of a car seat that I can think of. Year in and year out, Britax seems to garner very good ratings from professional publications and consumers alike. The Marathon 70 has many safety features that have given previous Marathon’s a “Very Good” rating by Consumer Reports. As of this writing, Consumer Reports has not published any crash test results of the current Marathon 70.

    The Marathon 70 has good side impact protection, though not the better “True Impact” protection that Britax’s higher end convertible car seats have. The only difference between them is described as:

    Minimize side to side head movement and literally “trues” the head:
    Minimizing movement and keeping the neck and spine aligned limits potential injury. A abrupt, violent change in speed may cause injury to the body. By limiting the movement of your child during a crash, you are limiting potential injury.

    The Marathon 70 however, does share the new integrated steel bars with their more expensive seats that “can minimize the risk of your child being violently propelled forward and hitting the back of the vehicle seat in front of the child restraint.”

    One thing that always stuck with me from the very first Britax we purchased was being told by the car seat techs at the police station and at AAA that they used Britax car seats for their own children. I’m not sure what better endorsement a car seat could get than that!

    COMFORT
    My children have always been pretty comfortable in Britax car seats. The seat cover material in the older Britax car seats were soft and plush but they changed the material to a more nylon like material on the Marathon 70. It looks much easier to clean but it doesn’t have the nice soft feel as the older covers. The design of Britax seats tend to cradle your child and some larger children who prefer to place their arms out of the car seat or on the sides like an arm rest may find it somewhat uncomfortable. One complaint I’d read from a lot of users in the older Britax car seats was the placement of the harness buckle (crotch area). Britax must have been listening because they now provide two different positions to help find the best location for your child. Also, the harness straps have comfort pads for the shoulder area that are now removable. Some older Britax car seats had permanently attached comfort pads, which car seat techs I spoke with, recommended be removed. The pads, while providing additional comfort, can make it harder to determine the correct tightness of the harness, so unless your child is screaming bloody murder, I would probably remove them.

    FIT
    The Britax Marathon is smaller than the Boulevard and Advocate. We have the Boulevard and Advocate in our SUV but we elected to use the Marathon for our Volkswagen Jetta sedan. We had to remove the head rest but it fit well otherwise. It could be an optical illusion, but the new Marathon 70 seems smaller than the older Marathon. Still, if you own a small car and are considered…

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