Team Calleva... broken bike?

According to the Sleepmonsters report the paddling is on and 2 or 3 teams are in the water. Calleva is very close to PC4, but their pace is about 10 km/h that is too slow for the biking leg they doing right now. Looks like somebody has a problem with bike. The white line on the image is 10 miles long. Times are stamped near circles with number 2.