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A bow vent lets the cover air out while heavy-duty shockcord and quick-release buckles ensure a snug fit
Power Ratio Second Gear - 29
Block diameter: 60 mm (1 31/32")
Zoned Neoprene technology
lasting protection
Lewmar 90mm Triple Synchro Block All Products A bow vent lets theProduct Description Lewmar 90mm Triple Synchro Block Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a free spin bearing and self aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother