2015 BWS / B-Train Log Trailer Tandem axle on both Lead and Pup Air ride Aluminum Wheels Lead bunks: Four 8ft and 6 inch Pup bunk: Two 8ft 6 inch Tires size: 11R22.5 Overall length is: 59 feet Lead:  Length: 37 feet 5 inch Width: 8 feet 7 inch  Height: 13 feet 6 inch  Front to king pin: 4 feet 7 inch Drive axle space: 11 feet 3 inch  Front to axle : 29 feet 3 inch Axle spread:5 feet  Bunk height: 8 feet 5 inch Pup:  Length:27 feet 3 inch  Width:8 feet 7 inch  Height: 13 feet 3 inch  Front to king pin: 1 feet 4 inch Drive axle space: 7 feet 2 inch Front to 1st axle: 20 feet 3 inch Axle spread: 4 feet 3 inch Bunk height: 10 feet 11 inch