Ronstan 55 Series Ratchet Mount Orbit Block - Fiddle Mouth Swivel

Now you can enjoy the flexibility of configuring your ratchet blocks to your liking. Ronstan is the only company to offer a ratchet block with automatic and manual engagement modes*. In automatic mode, the ratchet mechanism engages when a load is applied, but turns off when released. This allows the sheet to flow smoothly and freely, which is ideal for quick release of the sheet and for gybing asymmetrical spinnakers. In manual mode, the ratchet mechanism can be activated or deactivated as needed. This is the mainsheet configuration preferred by the best sailors. Try the block in thetwo modes and see which you prefer - you really can't go wrong.

* Selected 55 Series models.

Superb holding power of the ratchet block

Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated CN machined pulley features generation 2 of our patented cross-hole geometry. Its holding power reaches 21:1, almost double that of our closest competitor. The unique pulley design features 12 gripping faces that directly resist the movement of loaded line. Traditional designs have only 8 faces with angular resistance to line movement. Our Generation 2 design features straight resistance faces that distribute the load and minimize cable wear. These faces are offset from the radial line, to pull the rope towards the gripping areawhen under load.

Materials:

• Sheave: Anodized Aluminum
• Ball bearings: black acetal carbon fiber with high compressive strength
• Frame/cheeks: tempered nylon reinforced with glass fibers
• Rope link: UV stabilized, multi-strand SK75 Dyneema impregnated

Series 55 Ratchet Mount Orbital Block - Fiddle Bezel Swivel

Features:

• Up to 20:1 holding power
• Gentle sheet softening
• High performance tabs
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Auto Ratchet Block

Now you can enjoy the flexibility of configuring your ratchet blocks to your convenience. Ronstan is the only company to offer a ratchet block with automatic and manual engagement modes*. In automatic mode, the ratchet mechanism engages when a load is applied, but turns off when released. This allows the sheet to flow smoothly and freely, which is ideal for quick release of the sheet and for gybing asymmetrical spinnakers. In manual mode, the ratchet mechanism can be activated or deactivated depending onaccording to the needs. This is the mainsheet configuration preferred by the best sailors. Try the block in both modes and see which you prefer - you really can't go wrong.

* Selected 55 Series models.

 Superb holding power ratchet blocks

Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated CN machined pulley features generation 2 of our patented cross-hole geometry. Its holding power reaches 21:1, almost double that of our closest competitor. The unique pulley design features 12 gripping faces that directly resist the movement of loaded line. Traditional designs have only 8 faces with angular resistance to line movement. Our Generation 2 design features straight resistor faces that spread the load and minimize stress.cable wear. These faces are offset from the radial line, to pull the rope towards the gripping area when under load.

Materials:

• Sheave: Anodized Aluminum
• Ball bearings: high compressive strength carbon black acetal
• Frame/cheeks: glass fiber reinforced nylon
• Rope tie: UV stabilized, multi-stret SK75 Dyneema impregnated

For detailed shipping terms, please see our Shipping Policy and you can tFind our returns and refund policy here.