Designed to fit wider tires and maintain aerodynamics, the wavy new Fulcrum Sharq GR and Sonic GR gravel wheelsets boast a massive 30mm internal rim width for 47-50mm tires. Thats a full 5mm wider than the versions launched in 2025, and these are taller, too.Paired with the variable 47/52mm deep wave profile, they say they improve air flow, reduce frontal drag, and improve the yaw moment. The latter means theyre more stable in cross winds, and Fulcrum says this wavy design cuts drag by 29% at wind angles between 10 and 20. While most modern gravel wheels go wider, they stop short of true optimization in favor of pleasing everyone by fitting tires ranging from 40-55mm wide. Fulcrum realized that optimization often means specialization, and so these are designed specifically for 47-50mm tires.They say some specific 45mm tires are compatible, but that falls outside of the ISO standard and their own validations and testing. So, if youve gone wide and arent looking back, these will help you roll forward faster and smoother.Sharq GR vs Sonic GRThe Fulcrum Sharq series is the higher-end option. Both share the same dimensions, but Sharq is lighter with aero spokes and a lighter carbon layup. Heres the spec comparison:SHARQ GRSONIC GRHub BearingsCup & Cone Stainless SteelSealed CartridgeSpokesA3RO SpokesRoundedRim MaterialCarbon FF100Carbon FF80Internal Rim Width30mm30mmRim Profile47/52mm47/52mmWeight1,550g1,695gBoth rims use a non-drilled design, so you wont need tubeless rim tape to make them air-tight. And, they have a mini-hook for improved tire bead retention, increasing the range of safe tire pressures.Another unique feature is that the spokes dont touch as they cross each other. Fulcrum says this lets each spoke move freely, making the wheel better absorb impacts and move more freely with the terrain, cornering, etc.MSRP is 1,990 (Sharq GR) and 1,490 (Sonic GR), with all the usual freehub body options available.The post Fulcrums New Sharq GR, Sonic GR Gravel Wheels Optimize for REALLY Wide Tires appeared first on Bikerumor.