schindelhauer bikes - Automatic gearing - how does it work? The SRAM Automatix 2-speed hub automatically shifts up a gear when you reach speed of around 16 km/h. When you slow down
SRAM Automatix 2-Speed Coaster Brake Hub 36 Hole With 19 Tooth Cog, 120mm Over-Locknut, Silver and Gray Finish
SRAM Automatix 2 Speed Hack | Bike, Hacks, Disassembly
SRAM Automatix [Danish with subtitles] - YouTube
Automatix Roller Brake Compatible | IG-ATM-RB-A1 | SRAM | Service