Britax ยท Convertible
Britax Marathon ClickTight: expiration, limits, FAA and recalls
Useful life10 yearsmanual p.6
Rear-facing5-40 lbmanual p.6
Forward-facing20-65 lbmanual p.6
On airplanesFAA approvedmanual p.8
From the Britax Marathon ClickTight manual P11857600_A, revision 01.20. Always check the label on your seat; it overrides this page.
Recall check
Enter the model number and manufacture date of your seat. Where the manufacture date is printed
Where the manufacture date is printed
Serial number and manufactured date label, under the seat cover.
"Serial Number & Manufactured Date Label (under seat cover)" manual p.5
Illustration only. The exact spot is the one the manual quote describes.
Limits by mode
| Mode | Weight | Height | Source |
|---|---|---|---|
| Rear-facing | 5-40 lb | Not stated in the manual | p.6 |
| Forward-facing (harness) | 20-65 lb | Not stated in the manual | p.6 |
What the manual says
Useful life: 10 years
"discontinue use of this child seat if it is older than ten years or has been in a moderate or severe crash" manual p.6
Where the manufacture date is printed: Serial number and manufactured date label, under the seat cover
"Serial Number & Manufactured Date Label (under seat cover)" manual p.5
Rear-facing weight: 5-40 lb
"Use rear-facing for children who weigh between 5 and 40 lbs (2.3 and 18 kg)." manual p.6
Forward-facing weight: 20-65 lb
"Use forward-facing for children who weigh between 20 and 65 lbs (9.1 and 29.4 kg)." manual p.6
Use on aircraft: FAA approved
"This child seat is certified for aircraft use." manual p.8
Installation by mode
Rear-facing
Lower anchors (LATCH): up to 35 lb child weight
"Do not install rear-facing with the lower anchors for a child weighing more than 35 lbs (15.8 kg)." manual p.12
Top tether: Do not use
"Do not use the top tether strap with rear-facing installations." manual p.7
Forward-facing (harness)
Lower anchors (LATCH): up to 40 lb child weight
"Do not install forward-facing with the lower anchors for a child weighing more than 40 lbs (18 kg)." manual p.18
Harness, headrest and recline
Recline positions: 7 positions
"This child seat has 7 recline positions." manual p.27
Installing on an aircraft
Aircraft lap belt through the belt slots over the cover, with ClickTight closed
"Slide the aircraft lap belt into the rear-facing belt slots over the cover with the CLICKTIGHT in the closed position." manual p.8
Sources
- Britax Marathon ClickTight instruction manual P11857600_A (01.20), manufacturer PDF, csus.britax.com. Fetched 2026-10-20.
Spotted an error? Tell us. Facts are only changed from an official source.