Ronstan RF44108 Series 40 Bb Block – Single Loop Top – Clevis Pin Top

Ronstan’s Ball Bearing (BB) Blocks are a great all around solution. Ball Bearing blocks have been conceived and engeered for the demands of competative sailing. Used on boats of all sizes for sheet, fine tune and control line applications. They utilise a highely efficient, low friction bearing system for optimim sheeting and trimming performance.

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