How much luggage can I bring on the Shinkansen and Japanese trains?

This website provides information about luggage regulations on the Shinkansen (bullet train) and other Japanese trains. It includes information about luggage size and weight limits, reservation requirements, and fees for exceeding the allowance. It also details special luggage rules for bicycles, wheelchairs, and small animals. The website encourages users to utilize a luggage forwarding service if they are carrying large or heavy items.