This post entails a review done by New Zealand Child Restraints on the Britax Frontier 90 combined booster seat, dated October 2013. To see a larger image, click on the photo.

Brtiax Frontier 90

Britax Frontier 90

Basic seat facts:
Forward facing 11 – 54 kg (76 – 157 cm) At least 24 months old.
Harness mode to 40 kg
Maximum height – 157 cm
Standard – NZ “S” 1754 New Zealand + American FMVS 213.
Lifespan – 9 yrs

The Seat:
9 – height slots –  Adjustments from 29 – 48cm
Maximum booster slot height – 54 cm
2 – buckle slots – 17, 23.5 cm (from back of seat)
Seat width – 48 cm (across leg area)
Shoulder width – 32 cm
Leg width – 30 cm
Crotch buckle length -16.5 cm (Including buckle head)

Bum to top  - 60 – 79 cm
Bum to legs – 35 cm

Shell height – 71 – 91 cm
Back width – 34 cm
Base depth –  41 cm

Chest clip
locking clip
Cup Holder x2
Push in lever to adjust harness.
Padded cover
Single engaging buckle tongues
Latch and top tether attachments
Easy install method

About the Frontier 90

A very generously sized combined booster seat (forward facing only) for children from 2 yrs. of age to they no longer require a car seat. This seat will fit many children to at least 8 years of age, quite possibly longer.

The seat harness is easy to adjust with one hand, just squeeze the lever on top of the seat head rest, and slide the headrest up, or down to the desired position (at, or above the shoulder). With 9 height adjustments is easy to move when needed to help maintain it as closely to the shoulders as possible.

The seat shell features plastic with steel reinforcement. It’s heavy but like other seats on the market, very solid and offers less flex during an accident.

Installation is a breeze, sit seat in the car, open front plate (under the child’s bottom) by sliding the buttons towards each other. The panel opens upwards, feed the seat belt into the belt path, passing both parts of the webbing through behind the armrests. Buckle the seat belt in, remove slack – no compression of the seat needed, and does not need to super tight, just a gentle pull, snap front panel back into place. The seat does not move, if so, open panel and pull a little bit more slack out (may be needed in cars with leather seats) and re-engage the front panel.

Top tether not required with children less than 29 kg (though can be used at all times, and should be where possible).

Seat also features isofix attachments, though with the super easy install method, it’s not like you’d need to use them.

Available in Onyx fashion, black with beige pin stripe, check patterning. Nylon fabric, easy to clean and wipeable.


- Super easy to install
- High shoulder slots will last children to booster age easily
- Front recline lever
- Latch attachment slots to store away when not in use

- Heavy seat
- Headrest foam may break easily if child pulls on it (while seated/mid tantrum)
- Headrest cover does not seem to fully cover headrest, which may help with above mentioned issue
- Awkward to carry

Expected retail price of this seat $549, from:

1013a Dominion Rd
Mt Roskill

(Corner of Mt Albert and Dominion Roads, Enter driveway on
Mt Albert Road between Church and Christian bookshop).

Shop hours are Mon-Fri 9am to 4.30pm
Saturday 9.30am to 3pm


Please note, the “Frontier” model has existed in the US since 2007, they have had various models and features have differed between these. The model being sold here is the Frontier 90, this seat has the Click Tight install method, no side impact cushions, cup holders are solid back, the arm rests are fixed and cannot pivot. Some of the stores selling them have used the incorrect stock image. The images shown here are of the correct model, as sold at Kiwibaby.

Expressions expressed in this Blog are that of our own and not influenced by a third party or sponsoring company. Images used on this page are our own, stock photos, or images used with parents permission. Please do not use without permission.

Evenflo Sureride

We’ve been road testing this seat and have found the following things:

It fits newborns well.
It can fit an average sized 4 year old boy rear facing
It’s so easy to install, this includes small cars and even leather seats
The sides are lovely and deep
No complaints of discomfort
So easy to swap between cars
No tether when rear facing

rem doll (36cm) too small. Newborn doll (46cm) good fit

 year old REAR FACING 4th slot from bottom (this slot can be used either rear, or forward facing). 2 slots still to go above his shoulders and last image shows the left over webbing when harness is done up at the 3rd slots with same child in the seat.

Safe-n-Sound Maxi Rider Easy Adjust

Firstly let’s begin by touching base on a few things you may need to know.

This is the 4th generation of Maxi Rider car seat, the newest is very different from previous models.

*images of past models and differences.

Secondly this seat uses the “height marker” system used now on car seats in Australia, this system is unique to Australia and no longer bases it on the child’s weight. Although logically I would expect there to be some form of maximum tolerable weight limit that the seat can be physically capable of carrying. We’re yet to get a solid answer on this.
For more information on Height Markers, view this page.

The Maxi Rider Easy Adjust [MXEA] we have reviewed from is dated November 2012. Purchased from Baby City on January 18th 2013 for $499 (on sale, exclusive to Baby City). All boxes were dated the same.

The new features include:
+ No re-thread harness – as the name suggests, “easy adjust”
+ Adjustable headrest from the front of the seat (no need to uninstall).
+ 45 cm wide (was 50 cm)
+ Taller seat back/headrest
+ A stray away from the grey and black covers normally seen (though not entirely!)

Standard Features include:
- Cup holders
- Rotating armrests
- Recline foot
- 6-point harness
-Comes with tether bolt
- Safe-Guard clip for use in booster mode

So let’s talk about first impressions.
The cost is up there, the seat cannot be used rear facing, so is only for use forward facing in the harness, and then as a booster seat. The seat states from “6 months approx.”, yet personally I would not recommend using it before the age of 2 years. Many children under this would require the extra padding that comes with the seat, while this is not an issue, we’d prefer to see children remain in their rear facing seat until at least 2 years of age (longer where possible/where your seat allows it).
The box then speculates that you can use the seat until 6-8 years of age, and then need a full backed booster from 8-10 years.  New Zealand’s law is expected to change to include children up to 7 years of age be in a booster seat. The great news is that the MXEA will allow your child to fit from 2-7 years of age easily.

The colour choices are limited blacks, grey’s, beige and vibrant red. I got the red and really like it teamed up with the black. The bottom padding is removable, and reversible (without un-threading the harness) which allows more red to be seen with older children.
The harness pads are not attached, so they move about when on the child, unlike American seats there is no chest clip to help keep them in place, nor is there any form of anti-slip material on the back to prevent movement (commonly found on UK seats), they end up becoming belly pads.
The seat sports a cover in behind the buckle that helps it to keep forward when the child is not in the seat, so no more fishing out the buckle from under your child’s bottom when trying to buckle them up.

Inside the box comes a messy mat for placement on the vehicle seat, under the car seat, which covers the bottom and back of the seat. There is also an instruction manual (keep an eye out for this one falling out as it is not attached, and just rests inside a pocket on the side of the car seat), a tether bolt comes attached to the tether strap. A complimentary Baby on Board sign comes tucked into the harness.

The side of the seat sports a mesh pocket, inside this it seems is an audio cable to which you can attach your toddlers IPod (sorry guys the pocket is too small for juniors Ipad). It seems SNS include this in their top level seats; later models will be released without a speaker, at a fraction of the price.

So the thing people want to know about, the height of the shoulder markers. As previously mentioned there are 9 slots, only 8 of these are usable for the internal harness as the top most maker lines up with the “booster line” at which point once your child passes this line they’re considered too tall for their seat, even though the booster guide goes another 7.5 cm (3 inches) past the top marker.

Measurements were taken without compression and with the reversible toddler padding removed.

#1 – 26 cm
#2 – 28 cm
#3 – 31 cm
#4 – 33 cm
#5 – 36cm
#6 – 38.5 cm
#7 – 40 cm
#8 – 43.5 cm
Booster slot #9 – 46cm

Bum to top #1 61 cm – #9 78 cm (Internal Shell height)
Legs width – 29 cm
Leg depth – 29 cm
Shoulder width – 37 cm
External seat width – 44 cm
External shell height (minimum) 70 cm (maximum) 89 cm

For a comparison to the Diono RXT view this page *Coming soon.

+ Quick, easy adjust harness with no need to remove the seat from the car to adjust
+ Light weight
+ Top tether strap
+ Easy to install, pull down cover for easy access
+ Passes no head-slump sleep test

+ Markers do not allow full use of the harness
+ Markers do not allow full use of the booster (a loss of up to 3 inches/7.5 cm).
+ Does not allow rear facing, yet costs as much as seats that also offer this feature.
+ Difficult to adjust harness, you need to pull and tug and only a small bit tightens (we’re awaiting a reply from SNS about this).

Maxi Rider Easy Adjust taller setting

Maxi Rider Easy Adjust lowest setting with toddler insert

Side view

Buckle Adjustment – shown in middle setting (3 settings adjustable).

Seat cover clips – over front access belt path.

9 harness slots

Height Markers – harness at highest slot (#9) Booster slot – harness reaches, but needs to be used with marker below

Harness at highest harness slot (#8)

Thumb showing booster slot – where it really should line up with (booster marker is the first white label below my thumb, and harness marker below that).

Yet harness can go up to 2.5cm (1 inch) below the shoulder, which means they can go past the marker if you wish… confused? We are too.

Rear view of seat

Seat width 44cm

Our thoughts,

It’s light weight and easy to swap between cars and the belt path covers make it easy to tighten the seat belt. It would be great if it had a locking clip, or built in lock offs as getting a tight fit in other cars can be fiddly.

Overall thoughts from our mini technician, 3.5 years old,

He really likes his “red” seat, because the armrests rotate, it has a cup holder and he can sleep comfortably in it. The seat allowed for 3 children (aged 2, 9 and 3) across the back seat. With the armrests rotating this allows us easy access to getting him into and out of the seat. He can move them himself once he is in the seat.