This is a replacement Yokomo Lightweight Good Luck Wing V4 1/10 Touring Car Wing. This lightweight specification wing is made lightweight by altering the material of the wing 4.0 to thin things. Although the wing is the same shape as the standard bare wings, downforce decreases due to differences in material strength and weight, and turning performance increases. Especially in the stock category of touring car; it is effective in scenes where exercise performance is required rather than rear traction. The attached side dam is also a lightweight type.