You should maintain an increased following distance:

An expanded cushion of space is needed if your motorcycle will take longer than normal to stop. If the pavement is slippery, if you cannot see through the vehicle ahead of you, or if traffic is heavy and another driver may try to squeeze in front of you, open up to a minimum four-second following distance.

• If the pavement is slippery.
• If traffic is light.
• If you can see through the vehicles in front of you to determine traffic conditions.