Originally developed for the extreme demands on suspension forks and disc brakes of mountain bikes. They allow the precise and secure attachment of the wheel and also stiffen the suspension fork. For mountain bikers, who do not want to miss a reliable power supply, we have made hub dynamos for 15-mm thru axle for quite some time. Meanwhile, manufacturers of trekking bikes, fatbikes and gravel bikes increasingly value this technique. For these the new 12 mm standard is particularly suitable.
