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Maxi-Cosi RodiFix

The Maxi-Cosi RodiFix has a booster weight limit of 120 lb and has an expiration of 10 years. A high-back belt-positioning booster that could be installed with LATCH or the seat belt.

DiscontinuedNo longer made or sold new. Specs are kept for comparing generations.

  • 120 lbBooster to

When does it expire?

Follow Maxi-Cosi

All booster seats

RodiFix: key facts

  • The Maxi-Cosi RodiFix works as a booster from 40 to 120 lb and 40 to 57 in tall, per Maxi-Cosi.
  • Outgrown by height: "Do not use this booster seat if the tops of your child's ears are above the top of the booster seat's headrest."
  • It installs with LATCH (Isofix) or seat belt.
  • Maxi-Cosi says it expires 10 years after the date of manufacture.
  • Maxi-Cosi says it isn't certified for aircraft.

From Maxi-Cosi's manual and published specs. Always follow the limits on your seat's labels.

How the RodiFix stacks up

Against the 66 booster seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Booster weight limit120 lbHighest booster limit of 65 booster seats

Within the typical range for booster seats (100 lb to 120 lb).

This one
100 lbmiddle 110 lb120 lb
Expiration10 years

Within the typical range for booster seats (8 years to 10 years).

This one
6 yearsmiddle 10 years12 years

Flying with the RodiFix

Maxi-Cosi's label: “This restraint is not certified for aircraft use because aircraft seats do not have shoulder belts.” American lists “Booster seats with no approval label or shoulder harness” under seats and devices not approved for use on board (source).

What airlines say about car seats:

  • American: “Each ticketed customer is allowed 1 stroller and 1 car seat to be checked free of charge” “If an unoccupied, adjoining seat is not available, the gate agent will check the safety seat to your final destination.” Source
  • Alaska: “We will transport your child's car seat and stroller free of charge as checked baggage.” Source
  • JetBlue: “Checking a child safety seat will not count towards your checked baggage allowance and there is no fee assessed” Source
  • Spirit: “One (1) car seat will be accepted per child as checked baggage at no charge.” Source
  • Frontier: “strollers and car seats can be checked for free.” Source
  • Allegiant: “There is no charge for checking or gate checking one car seat per fare-paying passenger.” Source
  • Breeze: “Child seats may be carried on board the aircraft if a seat has been purchased for the Infant or Child” Source

Quoted from each airline's page as of 2026-11-02.

Where to buy the RodiFix

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good to know
  • Discontinued. You may still find it used or on clearance.
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Maxi-Cosi RodiFix
TypeBooster
Booster weight40–120 lb
Booster height40–57 in
Head ruleDo not use this booster seat if the tops of your child's ears are above the top of the booster seat's headrest.
InstallationLATCH (Isofix), seat belt
Aircraft labelNot certified for aircraft
Expires after10 years

Compare the RodiFix with

How each closest rival differs from the RodiFix, from the makers' specs.

Ask the meadow

RodiFix: questions answered

From Maxi-Cosi's published specs and retailer listings, last checked 2026-11-06.

Can you bring the Maxi-Cosi RodiFix on a plane?

Maxi-Cosi doesn't list it as certified for aircraft, so it can be checked as luggage but not used in the plane seat. See seats approved for planes.

Is it OK to buy a used RodiFix?

NHTSA publishes guidance on used car seats on its car seat page. Maxi-Cosi lists a lifespan of 10 years from manufacture for this model. Check the label and the maker's instructions, and ask your pediatrician about your child.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

More booster seats

Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.