Originally Posted by
genejockey
If you're on an MUP, and you're going slower than the rest of the riders, it might not be the best time to ride two abreast.
I'm not the OP, but your post got me curious. What if the two of you are riding at the speed limit (given that there is one on the trail you're on)? The rider coming up from behind you is technically "speeding." Do you still need to move into a single file so the speeder can pass you? This of course assumes you know how fast you're going.
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The value of your life doesn't change based on the way you travel. - Dawn Schellenberg (SDOT)