It can deliver up to 3A via USB , allowing it to charge modern smartphones and GPS devices at full speed—significantly faster than standard dynamo chargers.
For years, the "Forumslader" has been a cult classic among touring cyclists, randonneurs, and tech-savvy commuters. Born from an online forum discussion (hence the name), it was a DIY solution to a simple problem: most bike computers don't accurately measure low-speed climbing or account for headwinds. The is the latest, most refined iteration—turning a hobbyist project into a legitimate, professional-grade cycling instrument. forumslader pro v6