Fred is the resident ghost at the Kickstand Cyclery in the Yehuda Moon comic strip:
Before becoming a ghost, he was the Kickstand's owner. Yehuda and Joe bought the shop after his untimely demise. Fred has been spending hours riding the streets of Cleveland on his city bike looking for the blue car that hit and killed him, his presence indicated by the emptied cans of Proofide left scattered around the bike shop, and more recently, missing 3/32" ball bearings.