Observed arrival · 2026-09-19
Perno, the folding fat-bike built around a hinge
A demonstration storefront for a folding electric fat bike with 20 × 4.0 tires, a frame-mounted battery, and a hinge that closes it into a car-friendly shape.
- For
- People carrying bikes between streets, trails, cars, and trains
- Worth noticing
- The frame hinge closes the bike in about half a minute; the site specifies 20 × 4.0 tires and a 48 V, 13–20 Ah battery.
Field notes
The homepage organizes the concept around a central beam hinge, a removable frame battery, and six separable bike sections rather than around a long specification table. It gives indicative EU-oriented figures—250 W, 25 km/h assistance, and a 48 V battery rated at 13–20 Ah—alongside a catalog of accessories. A questionnaire turns storage, terrain, cargo, and trip conditions into a suggested configuration, while the site repeatedly identifies the project as demonstrative.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue