The Sunday Forecaster frame features an integrated headtube drilled for gyro tabs, double-butted toptube with an underside brake cable channel, double-butted Wave downtube, Wave downtube/headtube gusset, Mid BB shell internally butted seattube, Director style chainstay junction, tapered seat and chainstays, seatstay located removable U-brake mounts, stamped stay caps, seatstay located removable U-brake mounts and 5mm thick dropouts.