50/50 Road/eBike Commuter
Join Date: May 2007
Location: Valparaiso, IN
Posts: 791
Bikes: Specialized Roubaix, Specialized Fatboy, Specialized Sirrus, Nashbar Campus, Taga 2.0 Trike
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Never had a problem with my Swobo Dixon which has SRAM i-9. I've done a 14 mi. RT commute in around 0 degrees F.
As for speeds, it's going to depend on how hilly your riding is. More hilly? More gears.