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The SRAM Automatix 2-speed Bicycle Hub
The Merry Sales Company Is Importing Eagle 2-speed Coaster Brake Hubs in USA | The Radavist | A group of individuals who share a love of cycling and the outdoors.
Bendix 2-spd coaster repro (not April 1st) - Bike Forums
woom 3 AUTOMAGIC: Why an Internal Gear Hub Matters
2-speed hub motors are a new idea with great potential | ELECTRICBIKE.COM