The Tokyo Rig is a type of fishing rig that is popular in Japan. It is also known as the Japanese Drop Shot Rig. The rig consists of a main line, a leader, and a hook. The length of the main line and leader will depend on the depth of water you are fishing in and the size of fish you are targeting. For example, if you are fishing in shallow water for small fish, you would use a shorter main line and leader. If you are fishing in deep water for large fish, you would use a longer main line and leader.
The wire on the Tokyo Rig should be long enough to reach the bottom of the body of water you are fishing in plus an additional 2-3 feet. This will ensure that your bait stays near the bottom where the fish are feeding. The wire should also be strong enough to handle the weight of your bait and any fish that may be caught on your rig.