The frame number is located in different places on our cargo bikes and trailers. On the trailers, the frame number is stamped on the side of the bottom tube. On the yellow-galvanized steel frames, we have stamped the frame number on the left side of the plate located between the top and down tubes. On aluminum frames for rearDrive or frames for cargo bikes without a motor, the frame number is stamped on a plate under the bottom bracket. On midDrive aluminum frames, the frame number is stamped on the seat tube just above the motor housing.
