Today, we shouw latest folding bike "iruka" that is transformed mobility and interviewed with Kobayashi-san who is founder of "iruka". In detail and retailers are below www.iruka.tokyo
I do understand why iruka bike chose HUB GEAR unit which is heavirer than DERAILLEUR. Because this unique long slotted frame does not work with derailleur cage, and this slot is essential to achieve extreme compact size that optimized to Shinkansen compartment. 動画を見で分かりました。なぜ重い内装ギアを選んだかと言うと、この細長い穴ではディレーラーと干渉するから。新幹線サイズへのこだわりですね。
I like the design and hope the price is competitive for world market to make it affordable for the mass market. Hope you can export to Malaysia one day.