Reserve Wheels Reserve 30 GR AL Wheelset - 700 12 x 100/12 x 142 Center-Lock HG11 Aluminum DT350Reserve Wheels Reserve 30 GR AL Wheelset 700 12 x 100 12 x 142 Center Lock HG11 Aluminum DT350. The Reserve 30 GR AL is a tough adventure ready aluminum wheelset built for gravel riders who dont shy away from rough terrain. With a 30mm depth and 27mm internal width its optimized for larger volume tires offering stability and comfort off road. A semi hooked design makes tubeless setup easy while bombproof DT Swiss hubs ensure long lasting performance.