Reserve Wheels 40|44 TA GR - DT 350Aero Gravel for Drop Bar Riding and Racing Bringing cutting edge performance to the diverse needs of drop bar off roaders, Reserves new 40 44 GR gravel wheels are tailored for the demands of off road exploration and gravel riding, but with an aero focus. Leveraging Turbulent Aero technology, the 40 44 GR features a 40mm front paired with a 44mm rear, establishing it as our fastest and most stable gravel wheelset to date. Wider than our previous gravel