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Overview The Bell 8 Hole Top Air is a top forced air intake accessory designed for use with the HP7 and helmets based on this design, including the RS7 series, M8 Ultra (SA2025), M8 SPORT (SA2025), and K1 SPORT (SA2025) for both composite shell and carbon fiber model versions of those helmets. The 8 Hole Top Air design directs airflow only around the top of the helmet and is effective for drivers …