Patent ID: 6418873
Filing Date: 2002-07-16
Classification: B60B

Abstract:
A bicycle wheel rim comprising an annular rim body having a central axis, said annular rim body including:annular left and right side walls spaced-apart from each other and adapted for retaining a bicycle tire therebetween, each of said side walls having a radial inner edge proximate to the central axis, a radial outer edge distal to the central axis, and a lateral outer brake pad contacting surface; and an annular base wall interconnecting said radial inner edges of said left and right side walls; said brake pad contacting surface of each of said left and right side walls being formed with only one wear-indicating projection adapted to be in frictional contact with a brake pad, said wear-indicating projection being formed as a continuous, annular projection that extends along a respective one of said side walls around the central axis, said brake pad contacting surface including flat first and second surface sections on opposite sides of said annular projection, said wear-indicating projection projecting relative to said first and second surface sections; whereby, gradual wearing of said brake pad contacting surface during use of said bicycle wheel rim eventually causes said wear-indicating projection to wear off and to be flush with said first and second surface sections, thereby indicating that wearing of said bicycle wheel rim to a predetermined extent has occurred.