Disclosed is a gymnastics apparatus renovation kit including a cover adapted to fit tightly on a gymnastics apparatus to be renovated. The cover has an elongated shape extending in a longitudinal direction, the elongated shape corresponding to the shape of a gymnastics apparatus. The cover includes an upper face, two longitudinal lateral faces, two end faces, and an open lower face. The renovation kit also includes two rods, each rod being passed in a hem formed at the bottom of each lateral face of the cover and extending throughout the length of the cover. The renovation kit further includes links for joining the rods together in a transversal direction, tending to bring the rods closer together. Also disclosed is a corresponding renovation process and to a renovated gymnastics apparatus.