Using the dimpling design on the location of spoke hole , the dimpling angle is consistent with the angle of spoke hole , then the nipple can perfectly matched with the rim . Normal rim only have one point to match with the nipple , and the nipple will be easy to be destroyed. The dimpling design can improve this issue. The diameter of the dimpling and spoke hole could be designed as per the requirements of nipple. This rim is fit for the all-terrain bike and the fast-speed Ebike.