Ronin's finished frame weighs under three pounds
Ronin bike-builder Mark, working on one of the prototype's chainstays
Ronin bike-builder Rob, riding the prototype in San Francisco
The prototype, before being painted
Ronin Bicycle Works is planning on manufacturing a line of bicycles with frames made from hand-folded sheet metal
It took under three weeks to design and build the prototype
Go into any bicycle store, and pretty much all of the bikes in there will have frames made from metal tubes or carbon fiber. A few manufacturers have gotten a bit more adventurous, offering frames made of bamboo or wood, while some have even experimented with things like aramid panels and nylon. A trio of San Francisco-based entrepreneurs, however, have created a prototype bicycle using yet another frame material – hand-folded sheet metal. They claim that their product is lighter, stronger and cheaper to produce than an aluminum-tube frame, and they’re hoping to be able to sell you one.
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