DUKE Sierra Æra W48/56 Wheelset Bjorn If your gravel calendar involves

If your gravel calendar involves start lines

aided by Q36

thus improving aerodynamics

The Orondo Grade is a 7-mile 10% climb up a side canyon of the mighty Columbia River and the halfway point of the near-mythical

Built with in-house butted titanium tubing paired with a one-piece carbon seat mast

DUKE Sierra Æra W48/56 Wheelset Bjorn If your gravel calendar involvesGravel racing has quietly become a discipline where the front of the field averages speeds that would have been respectable in a road race a decade ago, and DUKE the small French operation that has been hand building wheels for 18 years has built its answer. The Sierra ra W48 56 is the fast end of their new gravel range: a 48mm deep Wide front paired with a 56mm rear, both laid up in Toray T1100 carbon using the same SLR5 process that underpins DUKE's