A mudbike helps me get out to ride in the rain because its ready to go for a quick ride and easier to clean than my higher-end mountain bike.
There are 2 conditions that determine your options when it's muddy -
1. Swampy = Trail is still rideable
2. Soupy = Time to hit the pavement instead
I have 2 bikes optimized just for these conditions -
The Mudbeast & the Stormtrooper
I go over the basics of what these offer.
Next, check out my video on tips for cleaning your muddy bike after your ride.