PowerTap G3 Rear Disc Hub and Joule GPS+ Review
PowerTap G3 Rear Disc Hub The PowerTap G3 Rear Disc Hub is exactly what it sounds like: it’s a power meter embedded in a disc brake-compatible mountain bike hub. The hub weighs 350g, which is a little on the heavy side for an MTB hub by about 100g, but it’s significantly lighter than some other power …
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