Red roll cage with Logo for VW Golf I type 17 — TA Technix

A roll cage does two unrelated things: protect you in the event of a rollover and stiffen the body. On a convertible, which has lost its roof and much of its rigidity, the difference is noticeable from the first bump - less shaking in the windscreen, with the front axle remaining aligned with the rear.

These are styling and stiffening roll cages, designed for road use and open track days. Timed competition under a racing license requires a federation-approved roll cage with its certification sheet: this is not the same part.