Forumslader Pro V6 [upd] (2026)

I wanted to share a few tips for anyone considering one or currently troubleshooting their setup, specifically regarding USB-C devices and cache batteries.

Note: As of late 2024, many sellers have discontinued the V6 in favor of the "Forumslader Pro V7," which adds DoIP (Diagnostics over IP) support. However, the V7 is buggy. The V6 remains the "gold standard" for pre-2009 cars. forumslader pro v6

: Equipped with three 18650 Li-ion batteries (typically 2900mAh each), totaling approx 324 Wh capacity. This large buffer allows it to charge a phone + bike computer combination in roughly 6 hours of moving time. I wanted to share a few tips for

How does the Forumslader Pro V6 stack up? The V6 remains the "gold standard" for pre-2009 cars

The Forumslader (German for "forum reader" or "forum downloader") started as a community project in online bike forums. The core idea was radical: measure a rider’s power output using a strain gauge mounted on the chainstay that measures the deflection of the frame under pedaling load, combined with a magnet-based cadence sensor.

Can be housed in custom waterproof enclosures or carried in handlebar bags. Acquisition and Assembly