The new Boyd Cycling Eternity hubs push bearings and flanges wider than ever to create a super stiff wheel, and the unique stacked axle system helps it roll smoother by effectively disengaging two of the four bearings when pedaling.
Founder Boyd Johnson says the hubs offer the widest flange spacing out there, especially at the front, where there’s 80mm from center to center of the flanges. Out back, he says most hubs have between 50mm and 55mm between rear flanges, but the Eternity hub pushes that to 56.1mm from flange center to center. The driveside flange is pushed to 18.1mm from hub centerline to flange center, which Boyd says is the widest that can be used on a modern 11-speed drivetrain. And it’s all optimized for both stiffness and tension with a traditional lacing pattern.
Those wider flanges create a wider base, improving triangulation. That means a stiffer “pyramid” peaking at the rim, which translates to less rim deflection under cornering loads. But that’s just part of what makes a stiffer wheel, so let’s have a look inside and see what else makes them special…
READ MORE ->