# RumbleSeat V2\+ \| live price, prepared checkout

## Built for shopping agents: what RoboTrunk does for every product

We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built.

RoboTrunk is working through its catalogue, so a step may not be done for this one yet. Where a step is done per product, the line ends with what is done for this product.

- **Deep research:** We read the maker's manual, independent reviews, video review transcripts and the store's own page, and publish each finding with its source and the date read. `check_product` returns them with a source for each. *This product:* 38 checked facts, research depth trimmed read, checked 2026-10-22T18:40:55.980Z, in the [evidence pack](/agent/evidence/modernnursery-com--uppababy-rumbleseat-v2).
- **Receipts:** Every published fact has a receipt showing its source quote. `check_product` and `get_product` return the checked facts that have one. *This product:* each checked fact listed below has one; the source quotes are in the [evidence pack](/agent/evidence/modernnursery-com--uppababy-rumbleseat-v2).
- **Safety:** `check_product` asks the product-safety regulators live (US CPSC, NHTSA and FDA, Health Canada, the UK's OPSS, Australia's ACCC) whether a recall names a product, listed here or not, and flags a match with its notice; a recall never blocks the buyer. *This product:* this page holds no recall result for it yet; `check_product` asks the regulators now.
- **Recall watch:** `watch_recalls` tells the buyer if a product bought here is recalled later.
- **Second-hand listings:** `check_listing` runs the same recall check on a second-hand listing someone found, and adds what the listing leaves out and the price new.
- **The real price:** The full price to the buyer's country, with shipping and tax, each part quoted from the store's policy or, where a part is not settled, what the total depends on: `check_product` and `search_catalog` take the buyer's country and postcode. *This product:* this store's price was read from its catalogue at 2026-10-22T19:36:25.592Z.
- **A checkout that finishes:** RoboTrunk lists only stores whose agent checkout it has verified. `create_checkout` prepares the order at the store; `complete_checkout` returns a link to the store's own checkout. The checkout can be finished in either of two ways: the person taps the link in their own browser, or their agent opens it and completes the checkout. RoboTrunk checks the store's total against a budget ceiling before it issues the link. Payment always happens on the store's own page, and RoboTrunk never holds the money. No store pays for placement; RoboTrunk may earn a commission from some stores via their affiliate programs.
- **Markdown copy:** Every page has a Markdown copy: [this page's copy](https://robotrunk.com/products/ucp/modernnursery-com/7368095105124.md).
- **Photos and ratings:** Search results carry the product photo and, where the store's own page publishes one, its rating (`search_catalog`).
- **Fit answers:** `check_fit` answers whether a listing fits a car, pram or bottle, with the exact quote from the store's page, or says it is not known.
- **Back-in-stock watches:** `watch_back_in_stock` starts a watch on a listing the store shows as sold out; `get_back_in_stock_watch` shows when it is back in stock.
- **Maker's manual:** `ask_product_manual` answers from the maker's manual with the exact passage and page, or says the manual does not cover it.
- **Tools and guide:** Every tool and its description is at https://robotrunk.com/mcp; the guide is at [/agents\.md](/agents.md).
- **Research from other stores:** Coming soon: reading other stores' listings of the same product as research sources.

Sold and shipped by modernnursery\.com, modernnursery.com; payment happens on the store's own checkout.

Brand: UPPAbaby

## Variants

- Stella: USD 249.99; in stock. Variant id: `gid://shopify/ProductVariant/42700137889892`
  - Seller: modernnursery\.com. Price: USD 249\.99. Stock: in stock. Variant: Stella, variant id `gid://shopify/ProductVariant/42700137889892`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7368095105124&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F42700137889892).
- Bryce: USD 249.99; in stock. Variant id: `gid://shopify/ProductVariant/42700137922660`
  - Seller: modernnursery\.com. Price: USD 249\.99. Stock: in stock. Variant: Bryce, variant id `gid://shopify/ProductVariant/42700137922660`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7368095105124&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F42700137922660).
- Emmett: USD 249.99; in stock. Variant id: `gid://shopify/ProductVariant/42700137955428`
  - Seller: modernnursery\.com. Price: USD 249\.99. Stock: in stock. Variant: Emmett, variant id `gid://shopify/ProductVariant/42700137955428`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7368095105124&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F42700137955428).

## Checked facts

Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 38 checked facts, checked 2026-10-22T18:40:55.980Z. Research depth: trimmed read. Deep read: the store's own data and 5 outside pages \(the store's own product page; manual; review; regulator recall search \(CPSC \(United States\)\)\), each read in full by RoboTrunk and trimmed to its main content, then written up and checked\. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read\. Recall status was checked directly with CPSC \(United States\): The CPSC recall search for UPPAbaby returned no recall records for the RumbleSeat V2\+, so no recall applies to this model on the evidence read\.

- colour options in the store feed: The store feed lists three colourways, Stella, Bryce and Emmett, under the same product\.. Source: <https://modern-nursery-test-store.myshopify.com/products.json> (listing), read 2026-10-21T19:31:31.510Z.
- what it does: It is a second seat that converts a VISTA V2 stroller into a double, for a child who has outgrown the bassinet stage\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- minimum age: The maker's manual gives a minimum age of 3 months, and the limits are 40 lbs \(18\.1 kg\) or 36 in \(91\.4 cm\), whichever comes first\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- manual availability: UPPAbaby publishes a downloadable manual specifically for the RumbleSeat V2\+\.. Source: <https://uppababy.ca/support/manuals/> (manual), read 2026-10-22T18:36:30.528Z.
- weight limit gain: The tester reports the V2\+ raises the child weight limit from 35 lbs on the older RumbleSeat to 40 lbs, which they say buys several more months of use for children spaced two to three years apart\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- weight limit: The seat holds a child up to 40 lbs\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- compatibility: It must not be used with VISTA models from 2014 or earlier\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- harness: The five\-point harness is described as adjusting with a single pull and never needing rethreading, which the tester found smooth and secure when buckling a wriggling toddler\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- age and height limits: It suits children up to about 3\.5 years old and up to 36 inches tall\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- installation warning: The adapter door must always be closed, otherwise the adapter can detach\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- recline: The recline is said to work one\-handed and to offer several angles, enough for a child to nap on longer outings\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- dimensions: Unfolded it measures 15 in long, 9 in wide and 32\.5 in high; folded it is 15 in long, 9 in wide and 19 in high\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- installation check: Each attachment must click audibly, and the adapters should be checked for full engagement before every use\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- canopy: The canopy is reported to extend further than the previous version, with a zip\-out panel for sun coverage, a peekaboo window and height adjustment for taller children\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- product weight: The seat itself weighs 6\.8 lbs\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- double\-mode rule: In double mode the upper seat must be loaded first and the RumbleSeat must never be used alone with a child in it\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- footrest: The multi\-position footrest is said to click firmly into each position and to cut down fidgeting, and it was absent on the older seat\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- what is in the box: The box contains a bumper bar, a bug shield and the quick\-attachment adapters for the VISTA\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- folding: The stroller can fold with the adapters left on, but the RumbleSeat must come off and the main seat must be forward\-facing and upright\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- installation: The tester found installation quick and straightforward thanks to large hubs and included adapters that click solidly into the frame\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- facing direction: The seat can be mounted parent\-facing or forward\-facing\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- bumper bar: The bumper bar has to stay fitted at all times, and the stroller must not be lifted by it\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- what is included: The bumper bar and bug shield come in the box, so they do not have to be bought separately\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- canopy: The canopy zips out for extra shade and has mesh panels for airflow and for watching the child\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- use warnings: The child must not stand in the seat, no excessive force should be put on it, and the stroller should be pushed with both hands while it is in use\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- lower position only: The seat only mounts in the lower position, and the stroller's regular toddler seat will not fit there, so for most double setups this seat becomes effectively a required purchase\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- adjustability: The canopy height, footrest and recline are all adjustable, and the recline works with one hand\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- care of the seat fabric: Seat fabric is spot cleaned or hand washed cold with mild detergent, no bleach, dried flat away from direct sun, and never ironed or dry cleaned\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- size versus main seat: The seat is noticeably smaller than the main toddler seat; the tester notes the main seat takes up to 50 lbs and 40 inches while this one stops at 40 lbs and 36 inches, so tall toddlers may reach the height limit before the weight limit\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- harness: The harness shoulder height slides in one motion instead of being rethreaded as the child grows\.. Source: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2> (guide), read 2026-10-22T18:36:25.312Z.
- care of the bumper bar cover: The leather bumper bar cover is spot cleaned with a damp cloth and must not be soaked, ironed or dry cleaned\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- bulk in double mode: With both seats loaded the stroller gains noticeable weight and a longer wheelbase, making narrow aisles, doorways and tight turns harder work\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- removable fabrics: All of the fabrics can be removed\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- young babies: Around three to four months old a baby may lean to one side before gaining enough core strength; an infant insert helps but is sold separately\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- spare parts: Only UPPAbaby replacement parts should be used\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- overall verdict: The tester rated the seat 4\.3 out of 5, praising the harness, easy fitting and compatibility while marking it down for its smaller size, the near\-mandatory purchase and the added bulk\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.
- warranty exclusions: Normal wear and tear, corrosion, sun or detergent damage, third\-party repairs and second\-owner purchases are not covered\.. Source: <https://back.prod.uppababy.com/media/af/23/36/1745815754/0903-RBS-CA_RumbleSeatV2Manual_240318.pdf?ts=1745815754> (manual), read 2026-10-22T18:36:29.583Z.
- stroller handling under load: Tested on a VISTA V2, the stroller is said to handle the added weight surprisingly well thanks to all\-wheel suspension and foam\-filled rubber tyres\.. Source: <https://thereviewrewind.com/uppababy-rumbleseat-v2-plus-review> (review), read 2026-10-22T18:36:39.274Z.

The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/modernnursery-com--uppababy-rumbleseat-v2)

## Questions we researched but could not confirm

Every fact above is cited. To find them we read the store listing, the manual, owner reviews and the recall records of CPSC \(United States\) and searched for the maker's page, regulator recall notices, blogs, owner forums and video reviews. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess.

- How do the seat fabrics feel to the touch, and is the padding thick or thin?
- Does the frame paint or coating rub off or scratch with use?
- Is the RumbleSeat V2\+ officially approved for the VISTA V3?
- Can it be fitted to a Cruz, Minu or Ridge stroller?
- Can a bassinet or infant car seat be used on the upper seat above the RumbleSeat?
- How much of the seat back and seat base does the child actually get \(seat height and width\)?
- Do the adapters develop play or rattle after months of clipping on and off?
- Does the leather bumper bar cover show wear or scuffing quickly?
- Is there an official safety standard or certification number for this seat?

To buy this through RoboTrunk, pass merchant `modernnursery-com`, product_id `gid://shopify/Product/7368095105124` and one variant_id from the list above.

Product image of RumbleSeat V2\+, supplied by modernnursery\.com: <https://cdn.shopify.com/s/files/1/0278/8291/3892/files/uppababy-rumnle-seat-v2-stella.jpg?v=1705007337>

This product on modernnursery.com: <https://modern-nursery-test-store.myshopify.com/products/uppababy-rumbleseat-v2>

Retrieved 2026-10-22T19:36:25.592Z from <https://modern-nursery-test-store.myshopify.com/products.json>

This page is published by RoboTrunk, a store built for shopping agents.

The store named on this page sells the product and ships it. RoboTrunk is not
the seller and never holds the money.

Buying works in one path. RoboTrunk's tools prepare a checkout at that store,
then hand back a short-lived link. The person approves the total; once RoboTrunk
has checked the store's total against it, the person is given the checkout link to
tap in their own browser, or, if the person prefers and gives permission, their
agent may open the link and finish there, and payment always happens on the
store's own checkout page. RoboTrunk never takes the payment or sees a card.

Where the rest of this site is:

- /agent/story.md is what RoboTrunk is and how it works, in full.
- /agent/tools.json is every tool, its arguments and its answers.
- /agent/merchants is every store you can buy from through RoboTrunk.
- /products/ucp is every store's indexed products.
- /products/search is one search across every store, in plain words.

- [What RoboTrunk is](/agent/story.md)
- [The tools and how to call them](/agent/tools.json)
- [The stores you can buy from](/agent/merchants)
- [Every store's products](/products/ucp)
- [Search every store at once](/products/search)
