8 Axle B-Train

semi truck tractor trailer This B-Train configuration is most commonly used across Canada, some US western states and in New York and Michigan. For combinations being used in the US, trailer length is usually 28’ for both trailers. Combinations that have trailers over 28’ long are called ‘super b’ combinations. The length of the trailers is different depending on the jurisdiction, but generally range from 28’ to 32’. Combinations that are operated as LCVs are found under the LCV combinations. The lead trailer has 3 axles, the rear (pup) trailer has 2 axles. Canadian Provinces have fairly standard maximum Gross Weight across the country, but Manitoba and Saskatchewan heavily restrict movements of 63,500 kg B-Trains to only major routes, with weight reductions on secondary highways.