RONSTAN RF917 Sailboat Acetal Sheave Steel Upright Lead 9316800032556 19MM Block

( Brand: Ronstan ), ( Part Type: Block ), ( Manufacturer Part Number: RF917 ), ( UPC: 316800032556 )

Review RONSTAN Sailboat 19mm Acetal Sheave Stainless Steel Upright Lead Block

Introducing the Ronstan RF917 Sailboat 19mm Acetal Sheave Steel Upright Lead Block, a high-performance component that is essential for efficient and reliable sailboat rigging. This lead block is meticulously designed and crafted to provide sailors with the durability, strength, and smoothness they need to optimize their sailing experience.

The Ronstan RF917 Lead Block boasts a 19mm acetal sheave, which is known for its exceptional strength and wear resistance. Acetal is a high-performance polymer that offers superior load-bearing capabilities and resistance to abrasion and impact. The sheave is also self-lubricating, ensuring that the block remains smooth and easy to use, even in the most demanding sailing conditions.

At the heart of the Ronstan RF917 Lead Block is a robust steel upright. This upright is engineered to provide the necessary support and stability for the sheave and the attached lines. The steel is treated with a corrosion-resistant coating to ensure that the lead block remains in top condition, even in the harshest marine environments.

One of the standout features of the Ronstan RF917 Lead Block is its sleek and compact design. The block is relatively small and lightweight, making it an excellent choice for sailors who are looking to reduce the overall weight of their rigging setup. Despite its compact size, the block is capable of handling heavy loads, making it a versatile and reliable solution for sailors of all levels.

The Ronstan RF917 Sailboat 19mm Acetal Sheave Steel Upright Lead Block is easy to install and use. It comes with a set of mounting hardware, allowing you to quickly and securely attach the block to your sailboat. The block also features a conveniently located ergonomic handle, making it easy to turn and adjust the block as needed.

In conclusion, the Ronstan RF917 Sailboat 19mm Acetal Sheave Steel Upright Lead Block is an essential component for any sailboat rigging setup. Its high-performance materials, robust design, and user-friendly features make it an ideal choice for sailors who demand the best in terms of durability, strength, and reliability. Whether you're a seasoned sailor or just starting out, the Ronstan RF917 Lead Block is sure to provide you with the performance and peace of mind you need to enjoy your time on the water.

The Ronstan RF917 sailboat 110mm (4.33 inches) tall, 19mm (0.75 inches) acetal sheave, steel upright lead block is a popular choice among sailors due to its durability and smooth operation. However, like any other product, it has its pros and cons.

1. High-quality materials: The sheave is made of acetal, which is known for its resistance to UV radiation, chemicals, and abrasion. The block is made of steel, ensuring strength and durability.

2. Smooth and efficient: The Ronstan RF917 block is designed to provide a smooth and efficient sheave action, reducing friction and wear on the rope.

3. Versatile: This lead block can be used for various applications, such as mainsheet, genoa or jib sheet, spinnaker sheet, and halyard.

4. Easy to install: The block comes with a removable base plate, making it easy to install and adjust.

5. Corrosion-resistant: The steel and acetal materials are resistant to corrosion, making this block suitable for use in harsh marine environments.

1. Cost: The Ronstan RF917 block is more expensive than some other lead blocks on the market.

2. Weight: The steel material and larger size of this block make it heavier than some other options, which may be a consideration for some sailors.

3. Limited capacity: This block is suitable for ropes up to 16mm (0.63 inches) in diameter, which may not be sufficient for larger boats or heavier applications.

In conclusion, the Ronstan RF917 sailboat 19mm acetal sheave steel upright lead block is a high-quality, durable, and efficient option for sailors looking for a reliable lead block. Its smooth operation, versatility, and corrosion-resistant materials make it a worthwhile investment. However, its cost and weight may be a consideration for some sailors, and it may not be suitable for larger ropes or heavier applications.

If you are looking for a reliable and efficient lead block for your sailboat and have a budget for a high-quality product, the Ronstan RF917 is an excellent choice. However, if you are on a tight budget or require a larger capacity block, there may be other options on the market that better suit your needs.

part # rf917 prices

• $19.85-$26.95

specifications scowware:

• brand: Ronstan
• part type: Block
• manufacturer part number: RF917
• upc: 316800032556

general scowware:

• Parts Accessories > Boat Parts > Deck Cabin Hardware
• condition: New

seller scowware:

• rating: 99.5%
• # reviews: 9123

returns scowware:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer scowware:

• started: March 5, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

payments scowware:

• wallet: Paypal
• other
• credit card: Visa
• cash

shipping scowware:

• type: Calculated
• service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope
• transit: 4-7 Days
• carrier: USPS
• class: Standard, Expedited
• cost: $0.00

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