{"id":81747,"date":"2025-11-26T06:00:00","date_gmt":"2025-11-26T14:00:00","guid":{"rendered":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/?p=81747"},"modified":"2025-12-01T05:26:49","modified_gmt":"2025-12-01T13:26:49","slug":"fuji-engineering-envision-streek-cargo-trike","status":"publish","type":"post","link":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/fuji-engineering-envision-streek-cargo-trike\/","title":{"rendered":"STREEK: A Cargo Trike Fit For Tokyo Streets"},"content":{"rendered":"\n

Who says bikes for hauling stuff can\u2019t be stylish? Meet\u00a0STREEK<\/a>, an electric-assist tricycle that fits the footprint of a standard bike but packs a surprisingly large cargo space right in the center. It offers load capacity and stability that regular bikes just can\u2019t match. The idea for STREEK was born back in 2016 when Takashi Okamoto, design project manager at Envision<\/a>, wanted to create a bike he\u2019d genuinely love to ride\u2014something perfectly suited for Tokyo\u2019s winding city streets. <\/p>\n\n\n\n

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He noticed that while cargo bikes are common in places like the Netherlands and Germany, Japan didn\u2019t have anything quite like that. \u201cThere used to be handcarts here, but they just don\u2019t work well in cities,\u201d Okamoto explains. \u201cSo I thought, if there\u2019s no cool, practical cargo bike in Japan, I\u2019d better make one myself.\u201d<\/p>\n\n\n\n

The team took a grassroots approach, starting with miniature models of STREEK displayed alongside figurines at exhibitions. It quickly caught the community\u2019s attention and built excitement inside the company about moving toward production.<\/p>\n\n\n

From concept to a concrete product<\/h2>\n\n\n

From those first sketches to the initial limited run, Okamoto was hands-on the whole way. The entire Envision team, including CEO\u00a0Harry Uden, got behind the project. When it came time to pick design software, Okamoto, with a background in car design using Autodesk Alias and Rhino, chose Autodesk Fusion<\/a>. <\/p>\n\n\n\n

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Takashi Okamoto, Design Project Manager, Envision Inc.<\/figcaption><\/figure>\n\n\n\n

\u201cFor mobility products like bicycles, which are made up of many assembled parts, solid modeling<\/a> is a better fit than surface modeling<\/a>, which excels at large body shapes like automobiles,\u201d he explains. \u201cBy using Fusion, which not only supports different modeling methods<\/a> but also offers rendering and cloud-based data collaboration, every aspect of STREEK\u2019s product development benefited. The operations and design work are intuitive, which made it possible to quickly turn ideas into form, and the rendering tools were both easy to use and high quality.\u201d<\/p>\n\n\n\n

Fujii Engineering<\/a>, the company that helped bring STREEK from prototype to production, also leaned on Fusion and cloud collaboration to make teamwork smooth and efficient. \u201cWithout Fusion, STREEK wouldn\u2019t exist as a product on the market,\u201d says Okamoto.<\/p>\n\n\n

Solid models that connect directly to manufacturing<\/h2>\n\n\n

With solid modeling in Fusion, which makes it possible to build detailed, volumetric 3D models, the team could perform physical calculations such as mass, center of gravity, and moment of inertia at the design stage, while also reliably checking for interference between parts. The software also links smoothly to 3D printers<\/a> and CAM, enabling a seamless handoff into manufacturing.<\/p>\n\n\n\n

\u201cTo get people to take a product that doesn\u2019t yet exist in the world seriously, it\u2019s crucial to have visuals,\u201d Okamoto says. \u201cIn order to get many people to connect with STREEK\u2019s concept and overall image, modeling, rendering, and 3D printing in Fusion have, right from the design stage, served as tools for giving tangible form to the cargo bike and conveying its appeal.\u201d<\/p>\n\n\n\n

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Prototyping and growing into production<\/h2>\n\n\n

The first 3D-printed prototypes created in Fusion caught a lot of attention at trade shows. That momentum led to working with a bike shop on customization and mechanical design, producing a rideable three-wheeler. The second version featured an original frame, and by the third, they designed a full cargo bike frame from scratch. Finally, the fourth prototype, finished in 2019, was built entirely in Fusion and included all the key features we see in STREEK today.<\/p>\n\n\n\n

Along the way, the team needed to switch the front suspension to something simpler for mass production without losing ride quality. Around this time, Okamoto connected with Fujii Engineering\u2019s president, Mitsuru Fujii, through social media.<\/p>\n\n\n

Bringing scooter suspension expertise to STREEK<\/h2>\n\n\n

Fujii and his company had experience designing a three-wheeled electric scooter called Sunameri<\/a> using Fusion since 2019. \u201cWe already knew about STREEK from the internet and were interested,\u201d Fujii says. \u201cWhen I got in touch on social media, I brought Sunameri to Envision, and we hit it off right away, moving quickly from casual chat to serious collaboration.\u201d <\/p>\n\n\n\n

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The unique suspension developed for Sunameri turned out to be a perfect fit for solving STREEK\u2019s challenges. Plus, since both companies used Fusion, sharing design data in the cloud was seamless. That\u2019s how the team decided to join forces, with Fujii Engineering taking on everything from frame manufacturing to assembling the final product.<\/p>\n\n\n

Learning Fusion fast and pushing STREEK forward<\/h2>\n\n\n

Sawa Arimizu, project lead at Fujii Engineering, joined the team in 2022. With a background in architecture, she hadn\u2019t used Fusion before but picked it up quickly thanks to its intuitive solid modeling and helpful online forums. \u201cWithin about three months, I was using it practically,\u201d she says. <\/p>\n\n\n\n

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Arimizu worked on improving the front suspension with carbon materials and even traveled to the factory in Malaysia to handle quality control. Because Fusion lets the team share data in real time via the cloud, STREEK can be produced anywhere in the world without losing the vision behind it.<\/p>\n\n\n

Dreaming big with STREEK<\/h2>\n\n\n

STREEK’s success is the result of a clear vision brought to life through collaboration and innovative tools. \u201cIf I hadn\u2019t found Fusion, STREEK might never have happened. It let me turn ideas into real images and find like-minded collaborators. The Mark 8 (current version) is already a high-quality mass-produced bike, but we\u2019ll keep improving it so people on the street will continue saying, \u2018That\u2019s cool!\u2019\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

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