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K'NEX 51438 Typhoon Frenzy Roller Coaster Building Set Building Kit, Gray

  • Based on 151 reviews
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Features

  • BUILD A 19FT LONG ROLLERCOASTER: With over 640 pieces including rods, connectors, 19 ft of track, motorized power and a silver coaster car, this awesome building set lets you create a cyclone of twisting roller coaster fun in your living room!
  • EASY TO BUILD 2-IN-1 MODEL: Discover non-stop action with this toy building set and download the exclusive instructions to build an incredible second model, the Tsunami Surge Coaster! With 2 models to build, kids and adults alike will enjoy hours of fun
  • EDUCATIONAL TOY: This construction set helps strengthen fine motor skills, logical thinking and problem solving. Perfect for capturing kids interest in basic construction, science and design, while promoting concentration and logical thinking
  • TOYS FOR 9 YEAR OLDS +: Ideal for encouraging young children to build and create while developing an understanding of STEM subjects, these kids building sets are great for children aged 9 and up
  • IDEAL GIFT FOR CHILDREN AND ADULTS: A great birthday gift or Christmas present for everybody! This amusement park set is a great gift for children looking for new challenges. This 19 foot long roller coaster building set for kids opens the door for hours of creative design play

Description

Bring a wave of fun from the ocean to your living room with the new Typhoon Frenzy Roller Coaster Building Set from K'NEX! Build with over 649 K'NEX parts & pieces like rods, connectors and track, and add motorized power to send the silver coaster car twisting and turning through over 19 feet of swirling, non- stop action! Download exclusive instructions to build an incredible second model, the Tsunami Surge Coaster! All K'NEX rods and connectors are made in the USA! Motorized chain lift. Ages 9+

Brand Name: Basic Fun


Manufacturer Minimum Age (MONTHS): 108


Sub Brand: ケネックス


Model Name: Typhoon Frenzy


Model Number: 51438


Age Range Description: 9 - 99 years


Customer Package Type: Standard Packaging


Manufacturer Maximum Age (MONTHS): 1188


Set Name: Typhoon Frenzy


UPC: 744476514387


Target Audience: Children aged 9 and above, unisex


Manufacturer Part Number: 51438


Model Year: 2021


Included Components: 1 x Typhoon Frenzy Roller Coaster


Item Type Name: Roller Coaster


Manufacturer: K'NEX


Unit Count: 50.0 Square Meters


Color: Gray


Theme: Educational


Subject Character: Typhoon Frenzy


Number of Pieces: 649


Item Dimensions: 34.15 x 13.29 x 33.3 inches


Item Weight: 1.7 Pounds


Size: Medium


Educational Objective: Team Building Skills


Additional Features: Non Toxic


Toy Building Block Type: Interlocking Toy Building Block


Is Assembly Required: No


Operation Mode: automatic


Number of Batteries: 2 AA batteries required.


Power Source: battery


Supported Battery Types: 2 AA


Material Type: Plastic


Frequently asked questions

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Top Amazon Reviews


  • Fun stem toy for 8 y.o.
Good quality and fun. My 8 y.o. enjoyed assembling and likes to play with it now.
Reviewed in the United States on November 20, 2025 by Inna

  • My first K'Nex build, loved it.
My first K'Nex building set and I have to say it is great. I build it on my YouTube channel if you want to see it in action (search for KTAF in google or on Youtube and you'll find Kid Toys Are Fun). A little bit more challenging to build than say a 649 piece LEGO model, but that makes it fun too. I would say a 9 year old could probably build it but might need a couple of minutes of help now and then. Once built it is great to turn on and just watch, repeat daily! The coaster runs down really smooth and fast, goes back up on the chain, it really is what you'd expect - great fun build and great fun motorized model. Takes a few hours if it is your first K'Nex build. It's big! ... show more
Reviewed in the United States on August 5, 2015 by Gav

  • Very cool for kids and adults
Wish I could give this a 5 ⭐️. Unfortunately, the kids need an adult for assembly, three of the red rods were not good as can see. Also, there are parts where they keep unlinking. I wish they had spare parts easily available like legos. It was a fairly complicated build with the instructions provided, it took me some time to build but my child loves it. I think that parts need to be designed better and have additional spare parts of each just in case one encounters issues. Overall the system is fun to see and is appealing. My son loves it even if I had to solve with tape while I see if they even have spare parts or additional rollercoaster cars. ... show more
Reviewed in the United States on December 25, 2025 by Diane

  • Was as described
Grandson loved it
Reviewed in the United States on December 30, 2025 by Naperville Mom

  • Recommend!
We are a big K’NEX fans in this house and my boys have been asking for a roller coaster set. Ages 12, 9 and 6. They needed a little help here and there. If you’ve never done a K’NEX set, it’s not as in depth of directions as Legos. A lot of it relies on looking at the picture and figuring it out. A few trial and errors but overall fun to put together. Most important thing it works great! It’s sturdy and the chain stays on with no problem. A couple reviews said that they were missing pieces, but we actually had a few pieces left over. So no issues with that! Would recommend. ... show more
Reviewed in the United States on June 16, 2023 by Kristen

  • Great project
Reviewed in the United States on January 29, 2025 by brett leamaster

  • Warning: Miniature knex pieces
These are essentially mini knex pieces and there was no indication on the product description to tell you that these are not the normal knex pieces size. See my photo of the items in the bag that came with this roller coaster set as compared to the Ferris wheel set (pieces out of the bag) we also purchased on Amazon. We’re disappointed that these are so small and wouldn’t have purchased it for my husband and son to do for their birthdays if I had known these were so tiny. ... show more
Reviewed in the United States on January 24, 2025 by Kristy Kowalski

  • Kids loved it
My three kids absolutely loved it. The complexity is just right and the little roller coaster cart does a good job rolling around.
Reviewed in the United States on March 11, 2023 by B.K.

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