When it comes to carbon wheels, manufacturers are all faced with the same conundrum. Carbon fiber rims can be lighter and stronger than their aluminum counterparts, but that strength comes at a cost; ultra stiffness. Spinergy offers a unique design solution to help take the harshness out of carbon hoops. Their patented spoke technology, PBO for short, is not new. Their intended purpose is two-fold: to reduce weight and damp vibration. Spinergy has long applied this Zylon fiber technology to their lineup of road bike wheels and more recently to gravel and XC options. Vital got a first look at...