The elimination of the entrance derailleur on many bikes has made biking easier, however lowered the variety of obtainable gear ratios. That is the place the Powershift hub is available in, because it basically replaces the entrance derailleur, permitting for extra gears on 1x (single-derailleur) drivetrains.
Manufactured by Belgium’s Categorized Biking, the Powershift was first introduced final yr, however gained new consideration when it just lately gained a Gold award on the Eurobike 2021 commerce present. It consists of 4 important components: a handlebar-mounted distant, a “sensible” digital thru-axle, the 2-speed hub itself, and a system-specific 11-sprocket cassette.
Within the setup’s direct-drive mode, the bike’s current single chainring performs the position of the large chainring on a 2x (two-chainring), front-derailleur-equipped drivetrain. Which means all the gear ratios are comparatively excessive.
Nonetheless, urgent a button on the distant wirelessly prompts the thru-axle, which in flip triggers a clockwork mechanism contained in the hub. That mechanism reduces the drive ratio, basically turning the prevailing chainring into what the corporate describes as a “digital small chainring.” Consequently, all the gear ratios – nonetheless using the identical chainring and cassette as earlier than – are actually decrease.
Whereas most 1x drivetrains already provide a reasonably vast gear vary, the thought behind the Powershift is that it’ll add a selection of extra gears inside that vary … with out the effort of shifting the chain forwards and backwards between two bodily chainrings. Moreover, the shifts happen inside 150 milliseconds, plus they are often made whereas the drivetrain is below full load.
The entire system is reportedly weatherproof, weighs not more than a Shimano Di2 digital 2x setup, and needs to be good for over 10,000 shifts per USB cost of the thru-axle’s battery.
Categorized Biking is at present providing the Powershift hub already constructed into three of its house-brand wheelsets, that are respectively aimed toward highway, gravel/highway and aerodynamic highway using. They’re all priced at €2,399 (about US$2,774).
Supply: Categorized Biking