Skip to product information
1 of 1
1 product view Open images for a closer look Compare photos with product details

Ronstan

Ronstan Series 50 All Purpose Block, Loop Top with Becket, 50mm Sheave

Ronstan Series 50 All Purpose Block, Loop Top with Becket, 50mm Sheave

SKUCT-119491

Regular price $51.59
Regular price Sale price $51.59
Sale Sold out
Shipping calculated at checkout.
Shipping rewards at $100 U.S. orders of $100 or more get free standard shipping, plus $10 off Expedited and Overnight.

Quantity
Use the Tug & Tow SKUInclude this SKU when you contact us about fit, availability, or reorders.
Delivery shown at checkoutShipping options, final costs, and delivery estimates appear before payment.
Check fit before orderingReview dimensions, part numbers, model details, and compatibility notes.
Confirm the details before checkoutFit can depend on your boat, RV, trailer, vehicle, or equipment. Contact us before ordering if compatibility is critical.Ask a product question

Product details

Review the details before ordering.

Elevate your sailing performance with the Ronstan Series 50 All Purpose Block, Loop Top with Becket. Engineered for demanding marine environments, this block delivers exceptional durability, low-friction operation, and high working loads for critical control lines. It's the reliable choice for cruising and racing, ensuring smooth and efficient sail handling. Upgrade your rigging with Ronstan's trusted performance today.

Key Features:
  • Self-Lubricating Acetal Sheave: Provides incredibly low friction and extreme durability, performing equally well under dynamic and high static loads for a long service life.
  • High Working Load Capacity: Boasts a Maximum Working Load (MWL) of 750 kg (1650 lbs) and a Breaking Load (BL) of 1500 kg (3310 lbs), handling strenuous sailing demands with ease.
  • Robust Construction: Features a Grade 316 stainless steel load strap and impact/UV-resistant fiber-reinforced Nylon cheeks for superior strength and longevity in harsh marine conditions.
  • Removable Becket Pin: The snap-fit removable becket pin allows for easy line splicing before fitting and is ingeniously locked into position without the need for tools, simplifying installation and maintenance.
  • Optimal Size: Equipped with a 50mm (2") sheave diameter and designed for a maximum rope diameter of 12mm (1/2").
Applications:

Ideal for mainsheet, halyard, vang, and spinnaker control lines on boats up to 10m (33ft).

Recommended Pairings:

Ensure continued peak performance with the Ronstan RF51010 Series 50 Replacement Becket and Pin.

Shipping & returns

Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.

Fit & compatibility

Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.

Need help choosing?

Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.

View full details