Looking at the Tour for All #4, I see that the shorter ride, the B ride is named Big Loop Reverse, with a distance of 17.9 mi and an altitude gain of 2171.3 ft. When I google that ride name, it returns Watopia Big Loop Reverse, with a distance of 26.4 mi, and an altitude gain of 2136 ft. which is OK since that is simply the Big loop backwards. What is the shorter route that the Tour for All #4 B ride will use?
The B ride is not the whole of the Big Loop Reverse. It is only the first 17.9 mi (28.7km) with a summit finish at the top of the Epic KOM Reverse.
The A (longer) ride is Road to Sky.
The C (women only) ride is Muir and the Mountain with QOM Finish.
OK, thank you. That explains it.