Folding Bike Frames

Yes. CHANGE frames are engineered precisely according to standard gravel and mountain bike geometries, providing ergonomic frame proportions in multiple size options. By matching your height and inseam, you can select the frame size that fits you best, enjoying a professional riding position and comfort identical to standard non-folding frames. (For detailed sizing recommendations, please refer to the "Gravel and Mountain Frame Size Chart" at the bottom of this page).

The patented CHANGE folding frame features a structural design that keeps the main triangle tubes completely intact without cutting them, maintaining the full rigidity of a traditional diamond frame. Furthermore, CHANGE folding frames have fully passed the stringent ISO 4210 safety standards set by the European Union—a rigorous test that most conventional folding bikes cannot pass. Whether for long-distance loaded touring or off-road riding, they deliver the same structural strength and durability as standard bicycles.

Yes, you can purchase the frame set separately and have a professional bicycle mechanic build it up with your preferred components and specifications. CHANGE frames use 100% market-standard specifications (including headset, bottom bracket, seatpost diameter, brake mounts, and wheel axle standards). When assembled or upgraded by a professional bike shop with high-end drivetrains or braking systems, they are fully compatible with standard components from major global brands without proprietary restrictions.

CHANGE frame sets come with a comprehensive set of premium accessories to facilitate custom building and transport:
Gravel Folding Frame Set: Includes folding frame, rigid fork, derailleur hanger, headset, cover bag, detachable pedals, and seat clamp.
Mountain Folding Frame Set: Includes folding frame, derailleur hanger, headset, carrying bag, detachable pedals, and seat clamp.

Both frames are specifically designed for their intended riding scenarios:
Gravel Folding Frame: Supports tire clearance up to 700C x 35C. It comes equipped with versatile cargo eyelets (6 on the fork, 2 on the top tube, 3 on the seat tube, and 3 on the down tube) and pre-drilled internal routing ports for dropper seatposts.
Mountain Folding Frame: Supports tire clearance up to 27.5 x 2.1 inches. It features cargo eyelets (3 on the seat tube and 3 on the down tube) and pre-drilled internal routing ports for dropper seatposts.

In addition, both frames reserve dedicated space for rear-drive e-bike system upgrades and feature an oversized exit port designed specifically for rear-drive electric kits, capable of routing up to 6 cables for seamless future rear-drive electrification.