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Ronstan Shock Blocks - Sheaveless Block

Ronstan Shock Blocks - Sheaveless Block

  • Line Size: 3/8", Breaking Load: 2200 lbs
  • Material: Anodized Aluminum
  • Color: Red Sold (1) per Package
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    Status:  null In Stock

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    • Some small line rigging applications do not require ball bearing blocks, so Ronstan has just introduced its Shocks Sheaveless compact blocks
    • Ultimate durability
      • With no moving parts SHOCKS provide ultimate durability and are maintenance free
      • They are ideal where sand and grit would compromise a bearing system or where regular flushing out isn't possible
      • Their gentle 3-dimensional geometry is kind on lines, but is strong enough to cope with poor leads
    • Designed to fit a wide array of small diameter rigging uses
    • Shocks are claimed to be prefect for moderate load uses where minimal purchase is required
    • The compact Shocks are carefully engineered to work well even if the load alignment is not straight
    • Made from anodized aluminum they weight only 2.5 g, yet can carry up to 350 kg of break-load force
    • The Shocks soft attachment compatibility make them suitable for use in numerous high performance dinghy and small sailboat rigging applications including tweakers, vangs, trapezes, cunninghams, barber haulers and kit bridles
    • They are also handy on larger boats for uses such as ladder and motor hoists, lazy jacks, sail covers, and tie-downs
    • They are available in four color choices to help keep complicated rigging configurations more organized


    • Material: Anodized aluminum
    • Line Size: 3/8"
    • Breaking Load: 2200 lb


    • Performance & Versatility
    • Ultra Lightweight - only 2g
    • Ultra Compact
    • Durable
    • Color Coded
    • Impact Resistant
    • Small Line Optimized
    • High Load Capacity - 350 kg (770 lb) Breaking Load
    • Poor Alignment Tolerant
    • Soft Attachment Compatible
    • Versatile
    • Grit and Salt Resistant


    • Vangs
    • Tweakers
    • In-spar Purchases
    • Outboard Raisers
    • Barberhaulers
    • Sail Cover Zipper Lines
    • Ladder Hoist
    • Lazy Jacks
    • Cunningham
    • Garage Hoists
    • Traveler Controls
    • Kite Bridles
    • Leech Lines
    • Trailer Tie-downs
    • Guy Lines
    • Trapeze Elastics
    • Control Lines
    • 2:1 Halyards
    • Luggage Ties


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