Safety 1st Smooth Ride Travel System with OnBoard FLX
- Item Weight: 32 pounds
- Harness Feature: Adjustable height, adjustable buckle position
- Number Of Wheels: 4
- Seat Material: oxford,nylon
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A heavier, multi material seat rated newborn and up to roughly 77 lbs, consistent with a convertible design meant to last through several growth stages rather than one.
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ASIN: B01JRY00C2Model: TR378EELCategory: Stroller Travel Systems
Overview
This Safety branded TR378EEL car seat is rated for newborn and up, with a weight capacity around 35 kilograms, about 77 lbs, and a 32 lb seat itself built from metal, plastic and polyester.
A 32 lb shell is on the heavy side for a car seat, which fits with an age range spanning newborn through older toddler rather than a single stage seat. The metal, plastic and polyester construction and the roughly 77 lb weight capacity suggest a convertible design meant to grow with a child through multiple stages instead of a single infant carrier. Installation is described only as user installed, without confirming whether that means seat belt, LATCH or both.
- Newborn and up age range
- About 77 lb weight capacity
- 32 lb seat weight
- Metal, plastic and polyester build
Who it's for
Parents wanting one seat to cover newborn through older toddler stages, rather than swapping seats as their child grows, fit the profile this weight and age range suggest. Anyone who only needs a lightweight infant only carrier for the first months should weigh the 32 lb shell weight against lighter, single stage options.
Pros and cons
- Covers newborn through about 77 lbs
- Sturdy metal and plastic build
- 32 lb shell, heavier than single stage seats
- Installation method not fully specified
- No seller description to confirm harness details
Performance notes
The mixed metal, plastic and polyester build is what accounts for the 32 lb shell weight, generally a sturdier construction than the light polypropylene shells used in single stage or booster seats. Covering newborn through roughly 77 lbs in one seat means the harness and shell have to adjust across a wide range of child sizes, the core tradeoff convertible seats make against lighter, single stage designs. The listing does not specify whether installation uses LATCH, seat belt, or both.
Specifications
| Brand | Safety |
|---|---|
| Model | TR378EEL |
| Dimensions & fit | |
| Item Weight | 32 pounds |
| Maximum Weight Recommendation | 77.16 pounds |
| Basket Weight Capacity Maximum | 50 pounds |
| Frame Weight | 32 pounds |
| Rear Facing Minimum Weight | 4 pounds |
| Car Seat Weight Capacity Maximum | 30 pounds |
| Rear Facing Maximum Weight | 30 pounds |
| Stroller Seat Weight | 11.5 pounds |
| Item Dimensions L X W X H | 19.7 × 17.7 × 31.5 inches |
| Back Wheel Diameter | 8 inches |
| Front Wheel Diameter | 7 inches |
| Folded Size | 18.8 × 22 × 28.2 inches |
| Rear Facing Stroller Maximum Height | 32 inches |
| Rear Facing Car Seat Maximum Height | 32 inches |
| Capacity & performance | |
| Seating Capacity | 1 |
| Age Range Description | Newborn and Up |
| Construction & materials | |
| Seat Material | oxford,nylon |
| Canopy Material | Fabric |
| Color | Monument |
| Material Type | Metal, Plastic, Polyester |
| Fabric Type | oxford,nylon |
| Frame Material | Metal, Plastic |
| Tire Material | Plastic |
| Compatibility & installation | |
| Installation Type | user-installed |
| Is Car Seat Compatible | Yes |
| Included components | |
| Unit Count | 1 |
| Included Components | Smooth Ride Stroller, onBoard 35 LT infant car seat |
| Warranty & support | |
| Manufacturer Warranty Description | 1 Year Limited Warranty |
| Other details | |
| Harness Feature | Adjustable height, adjustable buckle position |
| Number Of Wheels | 4 |
| Number Of Cup Holders | 2 |
| Harness Type | 5 Point |
| Stroller Type | Standard Stroller |
| Builtin Light | No |
| Has Stroller Brake System | Yes |
| Is Electric | No |
| Care Instructions | Machine Wash, Spot Or Wipe Clean |
| Additional Features | Foldable, LATCH Compatible |
| Specification Met | JPMA Certified, Meets ASTM Standards |
| Part Number | TR378EEL |
| Assembly Instructions Description | No Assembly Required |
Closest rivals on specs
Joie Ginger DLX Stroller and Mint Latch Car Seat- Item Weight 32 vs 26.67 pounds (+20%)
- Frame Weight 32 vs 26.67 pounds (+20%)
- Back Wheel Diameter 8 vs 10.2 inches (-22%)
Joie Ginger and Mint Latch 4-in-1 Travel System- Frame Weight 32 vs 22.8 pounds (+40%)
- Back Wheel Diameter 8 vs 10 inches (-20%)
- Maximum Weight Recommendation 77.16 vs 50 pounds (+54%)
Joie Ginger and Mint Latch 4-in-1 Travel System- Frame Weight 32 vs 22.8 pounds (+40%)
- Back Wheel Diameter 8 vs 10 inches (-20%)
- Maximum Weight Recommendation 77.16 vs 50 pounds (+54%)
Frequently asked questions
What age range does the Safety TR378EEL car seat cover?
Newborn and up, per the listed age range.
How much does the TR378EEL car seat weigh?
32 pounds, per the listed item weight.
What is the weight capacity of the TR378EEL?
About 35 kilograms, roughly 77 pounds, per the listing.