Front and rear bumper are attached very simply, and there is nothing to describe. The attachment indicated by arrows on the images.

Depending on the year the site of attachment may vary slightly.

Front bumper

The attachment of the front bumper Renault Twingo 1 (1992-2007)

The scheme of fastening of the front bumper Renault Twingo 1 (1992-2007)

Rear bumper

The attachment of the rear bumper Renault Twingo 1 (1992-2007)

The scheme of fastening of the rear bumper Renault Twingo 1 (1992-2007)