Two Colchester cyclists came off their bikes as a result of deep potholes on the East Bay section of the Wivenhoe Trail.
CCC member Peter Lynn - one of the cyclists affected - reported the matter to Colchester Council and the holes were filled withing two working days.
Peter also alerted other cyclists to the hazard via the e-mail group.
He said: "This shows the importance of cyclists working together.
"Well done to Colchester Council for taking the matter seriously and acting so quickly."