20mm Dynamic Bearing Back To Back Block
Upgrade your vessel's rigging with the Allen 20mm Dynamic Bearing Back To Back Block, a high-performance block from Allen designed for serious sailors. This 20mm dynamic bearing back-to-back block minimizes friction and improves line efficiency, making it a solid choice for any boat parts or deck hardware setup. Built for the marine environment, it delivers durability and smooth operation across a range of rigging applications.
Free delivery Australia-wide on orders over $350. We deliver to every marina, port, coastal town in Australia, including Port Lincoln, Rivergate Marina, and Rose Bay Marina. Whether you are outfitting a cruising boat or a racing rig, this block helps keep lines clean and performance consistent. Add this marine parts essential to your kit and enjoy reliable blocks that support your sailing needs, with coverage across Australia.
Details
Full specifications, features and technical details for this product are listed in the description above. Need help checking compatibility with your vessel, caravan or 4x4? Contact our Gold Coast team on 0416 180 996 or sales@bigburjos.com and we'll confirm fitment before you order.
Shipping & Returns
Shipping (Australia-wide): Orders over $350 AUD ship free. Orders under $350 have a $15 AUD flat-rate delivery fee. Standard delivery takes 3–11 business days depending on your location; express options (1–3 business days) are available at checkout. Orders are dispatched within 1–2 business days.
Returns: We offer a 30-day return policy. Items must be unused and in original packaging. Contact us at sales@bigburjos.com or 0416 180 996 to start a return. See our full Shipping Policy and Refund Policy for details, including your rights under Australian Consumer Law.