Thule OPEN BOX Yepp Maxi 2 Frame Mounted Child Bike Seat - Midnight Black | live price, prepared checkout

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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. 83 checked facts, checked 2026-10-11T04:31:04.531Z. Research depth: trimmed read. Deep read: the store's own data and 11 outside pages (the store's own product page; maker page; manual; review; blog; regulator recall search (CPSC (United States)); regulator recall search (Health Canada)), 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), Health Canada: CPSC search for Thule-dc / Yepp 2 Maxi frame mount returned no recall records; Health Canada records mentioning Thule-dc were none.

• SKU: Store SKU is 12041201-ob.. Source: https://dd1dfe-a3.myshopify.com/products.json (listing), read 2026-10-10T19:03:37.915Z.
• what it is: A rear-mounted child bike seat for everyday rides.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• weight: Maker lists weight as 5 kg.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• safety standard: Manual declares EN 14344:2022.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• buckle safety: Review testers found that strong, determined toddlers could unbuckle the childproof buckle after watching how it works; the maker reportedly said it had not received reports of this.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• installation: The frame mount clamps around the seat tube with four screws; short and long screws are supplied for different frames and e-bikes.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• build quality: Well-designed, sturdy, and comfortable; it handles heavier kids with confidence.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• frame mount: The mount has a large contact area on the seat tube for stability and frame safety; the cartridge does not stick far toward the tire.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• installation: Frame mounting can be done in about 15 minutes even with an initial mistake; the illustrated instructions are clear.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• testing: Tested in the Kinderfahrradsitze 04/2025 programme, product group rear seats for frame mounting.. Source: https://www.test.de/Kinderfahrradsitze-im-Test-1523772-detail/320000022340%2111/ (review), read 2026-10-11T03:55:19.535Z.
• vendor: Store vendor is Thule-dc.. Source: https://dd1dfe-a3.myshopify.com/products.json (listing), read 2026-10-10T19:03:37.915Z.
• seat comfort: The seat uses soft shock-absorbing foam.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• max child weight: Maker lists max child weight as 22 kg.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• max speed: Manual gives a maximum speed of 25 km/h (15 mph).. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• fit age: Rated for ages 1 and older up to 40 lb in the US; the higher back suits older or taller riders, but only two shoulder strap height positions make it less ideal for children under about 18 months.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• paint protection: The mount has rubber inserts to grip the frame and prevent paint damage; no marking was noticed on the frame after removal.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• shock absorption: The flexible rubberised material and bracket flex absorb bumps; there is no built-in suspension, but the design still works effectively.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• frame compatibility: Requires an aluminum or steel frame with round or slightly oval tubes.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• lock: The lock secures the seat and two keys are included.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• dimensions: Dimensions are approximately 92 x 41 x 30 cm.. Source: https://www.test.de/Kinderfahrradsitze-im-Test-1523772-detail/320000022340%2111/ (review), read 2026-10-11T03:55:19.535Z.
• adjustability: Footrests and footstraps adjust as the child grows.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• max child height: Maker lists max child height as 110 cm.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• frame compatibility: Frame mount fits circular tubes of 28-40 mm.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• comfort: Parent and child testers praised the comfort; the cushioning and suspended seat design gave a smoother ride than many other seats.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• bottle cage: The mount usually fits where an upright bottle cage goes, so an alternative bottle-carrying method may be needed.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• support: The high back and deep bucket shape give good support, and the five-point harness held a child securely.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• torque: Installation uses a 5 mm Allen key and 8 Nm torque; the supplied short Allen key helps avoid over-tightening.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• frame fit: On a bike with the saddle at its lowest position, the bar is harder to fit around the frame.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• weight: Empty weight is approximately 5.2 kg.. Source: https://www.test.de/Kinderfahrradsitze-im-Test-1523772-detail/320000022340%2111/ (review), read 2026-10-11T03:55:19.535Z.
• mounting: The seat can be mounted and dismounted in seconds with a universal quick-release bracket.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• model number: Model number is 12041201.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• frame compatibility: Oval tube maximum is 40x55 mm.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• shock absorption: The seat sits suspended above the plastic base and the foam absorbs vibrations; both frame and rack versions have a shock-absorbing design.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• seat removal: The seat slides into the mount with a positive click; applying lubricant helps if removal feels stiff.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• installation: Installation took about five minutes using the supplied Allen key.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• removal: Removing the bars from the cartridge requires care because the bars should not be under seat pressure.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• adjustability: The seat distance from the frame is adjustable, which helps with longer legs; the high backrest helps the child sit upright.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• theft protection: Theft protection: yes.. Source: https://www.test.de/Kinderfahrradsitze-im-Test-1523772-detail/320000022340%2111/ (review), read 2026-10-11T03:55:19.535Z.
• suspension: A DualBeam suspension system absorbs road shock.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• country of origin: Country of origin is Poland.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• child limits: Manual lists weight range 9-22 kg / 20-40 lbs.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• bike compatibility: The frame mount should fit if there is about 4 inches of seat tube free of wires or cable brackets; it generally does not fit step-thru frames.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• adjustability: The seat can move forward or backward via a lever under the seat; the lever can be difficult to clip fully back into place.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• mount: One large bracket bolts to two smaller brackets and can be moved up or down the seat tube for different child weights.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• comfort: The soft plastic seat and mounting bars give some cushioning; the child smiled and willingly got in.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• harness: The five-point harness and childproof buckle were chosen for support and safety if the child falls asleep; shoulder straps adjust in three places.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• ratings: Detailed test results are hidden behind a paywall, so specific ratings are not shown.. Source: https://www.test.de/Kinderfahrradsitze-im-Test-1523772-detail/320000022340%2111/ (review), read 2026-10-11T03:55:19.535Z.
• visibility: It has a built-in reflector and a safety light attachment point.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• harness: Harness is a five-point fixed system.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• child limits: Manual lists max height 110 cm / 43.3 inch.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• harness: The five-point harness is easy to secure; two separate straps clip in individually and tension adjusts easily.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• lock: An integrated key lock secures the seat and is easy to remove; the mount is low profile when the seat is off.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• ride feel: The ride is comfortable and predictable, with some resonance but no creaks or rattles.. Source: https://portal.bikeworld.pl/artykul/testy_i_nowosci/testy_akcesoriow/19602/test_fotelik_rowerowy_thule_yepp_2_maxi (review), read 2026-10-11T03:54:14.814Z.
• footrests: Footrests are easy to adjust; the front strap holds the feet and a plastic guard prevents feet reaching the spokes.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• buckle: The safety buckle is described as childproof.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• care: Clean the seat with lukewarm water and mild detergent.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• installation torque: Bolts should be tightened to 8 Nm.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• leg shields: Smaller leg shields protect the child's legs and feet without interfering with the adult rider's pedal stroke.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• handling: The bike feels top heavy when walking or starting off, but this improves once underway and is common for rear seats.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• straps: The straps adjust with a single slider and can be clipped one side at a time; the buckle can be stiff.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• weather and care: Water-repellent materials are easy to clean and dry; a rain cover is available separately, and there is a built-in reflector and light point.. Source: https://liefsmarielle.nl/fietsstoeltje-thule-yepp-2-maxi-review/ (blog, Liefsmarielle.nl, published 2023-06-27), read 2026-10-11T03:55:03.503Z.
• harness: The harness is adjustable, padded, and five-point.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• frame fitting: Quick-release bracket is designed to fit many common circular and oval bike frames and lets the seat be attached and detached in seconds.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• bolts: Mounting bolts include M6x44.. Source: https://www.thule.com/-/s/approved/std.lang.all/05/75/1600575.pdf?rev=3.2 (manual), read 2026-10-11T03:51:04.008Z.
• ventilation: The upper back has 18 ventilation holes; less than the original Yepp but more than some other seats.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• visibility: The seat is dark with only a small reflective red strip; a built-in strap allows a light, and added reflective tape improves visibility.. Source: https://www.cyclesprog.co.uk/reviews/thule-yepp-2-maxi-rear-seat-review/ (review), read 2026-10-11T03:51:32.899Z.
• limitations: There is no recline option and less side protection than some seats; weight is about 4.6 kg.. Source: https://road.cc/content/review/thule-yepp-2-maxi-315207 (review), read 2026-10-11T03:52:21.274Z.
• materials: Water-repellent materials make cleaning and drying easy.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• safety: Maker says it meets strict international safety standards.. Source: https://www.thule.com/ja-jp/child-bike-seats/rear-mounted-child-bike-seats/thule-yepp-2-maxi-_-12041201 (guide), read 2026-10-11T03:50:42.827Z.
• harness adjustment: The rubbery shoulder strap pads help keep the straps in place but make tightening the harness awkward.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• lock: A high-quality metal lock to secure the seat to the bike is included.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• footrests: Footrests adjust without tools; wide straps secure the feet, and shoes are recommended for the best fit.. Source: https://www.twowheelingtots.com/thule-yepp-2-maxi-review-frame-and-rack-mount/ (review), read 2026-10-11T03:51:12.886Z.
• age range: Designed and tested for children from 9 months to 6 years old, up to 48.5 lbs/22 kg; consult a pediatrician for children under 1 year.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• max child weight: Store listing gives max child weight 40 lb.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• max child height: Store listing gives max child height 43.3 in.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• weight: Store listing gives seat weight 11 lb.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• safety harness: Safety harness is five-point.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• safety standards: Store listing says it meets safety standards.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• open-box warranty: Open-box purchases include a 1-year manufacturer’s warranty.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• open-box returns: Open-box items are final sale.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• open-box contents: Open-box items include everything a brand-new product would.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• open-box condition: Some open-box items may show small cosmetic imperfections that do not affect use.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.
• open-box packaging: Open-box items ship in the original packaging.. Source: https://dd1dfe-a3.myshopify.com/products/thule-open-box-yepp-maxi-2-frame-mounted-child-bike-seat-midnight-black (guide), read 2026-10-11T03:50:35.504Z.

The full evidence pack, with every citation, source and gap.

Questions we researched but could not confirm

Every fact above is cited. To find them we read the store listing, the maker's page, the manual, owner reviews, blogs and the recall records of CPSC (United States) and Health Canada and searched for regulator recall notices, 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.

• Which weight limit applies in the US: 40 lb or 22 kg?
• What is the exact weight of the seat?
• Is the childproof buckle truly childproof for strong toddlers?
• Is it safe to install on a carbon fiber bike frame?
• Will the frame mount fit my specific bike model?
• Can the seat be used on a step-through frame?
• Does the paint or coating on the frame mount rub off over time?
• How long is the manufacturer warranty on a non-open-box seat?
• What replacement parts are available for the harness and mount?
• Does the seat come with a rain cover?
• What is the minimum child age for safe use without a pediatrician consultation?
• Are there side-impact protection ratings for this seat?
• Does it meet ASTM F3641 for rear child bike seats?
• Can the shoulder straps be adjusted low enough for a child under 18 months?
• Does the seat fit bikes with oval frame tubes larger than 40x55 mm?

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