Composite bicycle frame with bottom bracket assembly, fork and seat attachment

摘要

An improved all composite bicycle frame (12) has three integral mating portions for the main triangle, asymmetric bottom bracket (52), improved composite layup, wall thickness, and tube geometry providing lighter weight and increased strength in an economical manner, an improved telescoping seat attachment fitting an integral seat mast (30) and a fork (14) having improved strength, weight and performance properties.