1. Personal Watercraft Parts Products
  2. sku: 6595144180087622
  3. RONSTAN RF20100

RONSTAN RF20100 Ball Bearing Block Single

fits year: 2020.

Rf20100 Ronstan Series 20 Ball Bearing Block - Single

( Brand: Ronstan ), ( Manufacturer Part Number: RF20100 ), ( Part Type: Bearing Block )

Review RONSTAN Series Ball Bearing Block Single fits 2020

Introducing the Ronstan RF20100 20 Ball Bearing Block Single, a high-performance sailing accessory designed to deliver smooth and efficient sheeting action for your sails. This block is part of Ronstan's renowned RS range, which is known for its exceptional strength, durability, and innovative design.

The Ronstan RF20100 is a single-sheave block, which means it has one sheave or pulley wheel. The block is constructed using Ronstan's proprietary RS Series materials, including a robust, corrosion-resistant marine-grade aluminum alloy body and stainless steel components. The ball bearings are made from high-quality, self-lubricating material that ensures a long lifespan and minimal maintenance.

The Ronstan RF20100 is specifically designed for use with 20:1 or 30:1 sheet lines, making it an excellent choice for cruising and racing applications. The block's large, ergonomic shape and non-slip surface make it easy to handle, even in wet conditions or when wearing gloves. The sheave diameter measures 3.5 inches (89mm), and the total length of the block is approximately 6.7 inches (170mm).

The Ronstan RF20100 Ball Bearing Block Single is compatible with various types of sailing hardware, including Ronstan's own range of cleats, clutches, and other accessories. Its sleek, modern design not only enhances the aesthetic appeal of your boat but also contributes to improved sailing performance and ease of use.

In conclusion, the Ronstan RF20100 20 Ball Bearing Block Single is a versatile and high-performance sailing accessory that is perfect for both cruising and racing applications. Its robust construction, smooth operation, and ergonomic design make it an essential component for any serious sailor looking to optimize their sailing experience.

The Ronstan RF20100 20 ball bearing block is a popular choice among sailors for its durability and smooth functionality. Here are some pros and cons to help you make an informed decision before purchasing.

Pros:

1. Smooth and efficient: Ball bearing blocks offer less friction, allowing for smoother and more efficient sheeting and easier trimming.

2. Durable: The ball bearings are protected by stainless steel cages, ensuring longevity and resistance to the elements.

3. Adjustable: The block comes with an adjustable traveller, allowing for fine-tuning of sail position and control.

4. Lightweight: Made of lightweight materials, the block is easy to handle and maneuver.

5. Versatile: The RF20100 can accommodate lines up to 16mm in diameter, making it suitable for various applications.

Cons:

1. Cost: Ball bearing blocks tend to be more expensive than standard blocks, making them a potential investment for some.

2. Maintenance: While self-lubricating, ball bearing blocks may still require occasional maintenance to ensure continued smooth operation.

3. Size: Larger than standard blocks, the RF20100 may not be suitable for sailboats with limited space.

4. Potential for damage: The ball bearings can be vulnerable to impact damage, which may require replacement.

In conclusion, the Ronstan RF20100 20 ball bearing block offers numerous benefits, including smooth functionality, durability, and adjustability. However, its higher cost, potential for maintenance, and larger size may be considerations for some. If you prioritize efficiency and ease of use, and are willing to invest in a high-performance block, the RF20100 is a strong recommendation. It's an excellent choice for cruisers, racers, or anyone looking for improved sail handling.

Details:

Materials: us.V. Applications: Dinghy control lines, Vang's, Cunningham's, Traveller controls. I need to exchange an item. Specifications: Sheave: 20mm 3/4 , Max.

Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items.: Brand: Ronstan, model Number: RF20100. Ronstan Series 20 Ball Bearing Block - Single RF20100: Single, Features: Low friction, High static and dynamic load capacity, Lightweight, Precision molded Acetyl sheaves running on stainless steel or Orlon ball bearings provide high performance low friction.

Stainless steel ball bearings. Rope: 6mm 1/4 , Pin: 3mm 1/8 M.W.L.250kg 550lbs, B.

part #: rf20100 prices

  • $9.00-$23.99

specifications perwatercraft:

  • for years: 2020
  • brand: Ronstan
  • mpn: Rf20100
  • part type: Bearing Block

offer perwatercraft:

  • sold: 0
  • options: Ship-to-home
  • started: May 28, 2025
  • availability: In Stock
  • quantity: 2

returns perwatercraft:

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

seller perwatercraft:

  • rating: 99.6%
  • # reviews: 63815
  • city: Newark, NJ

shipping perwatercraft:

  • cost: $0.00
  • service: Standard
  • type: Fixed
  • class: Standard
  • transit: 3-6 Days

general perwatercraft:

  • condition: New
  • Parts Accessories > Personal Watercraft Parts > Other Parts

payments perwatercraft:

  • other
  • wallet: Paypal
  • credit card: Mastercard
for years: 2020, part type: bearing block,
category: watercraft parts > parts, sku: 6595144180087622,

Ronstan RF20100 Is Similar To:

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perwatercraft logo
5 offers $9.00–$23.99 USD
  • Offer #1: $20.00 price + $0.00 shipping estimate = $20.00* total. With its manufacturer part number , it is specifically designed to handle the rigging and fittings of sailing vessels, ensuring optimal performance and precision in challenging sea conditions. The Ronstan Series 20 Ball Bearing Block is a high-quality sailing hardware designed for marine applications.FREE SHIPPING
  • Offer #2: $9.00 price + $16.45 shipping estimate = $25.45* total.+$16.45 shipping
  • Offer #3: $23.99 price + $0.00 shipping estimate = $23.99* total. The Series 20 uses 20mm ball bearing sheaves and fits 6mm or 1/4" line. Ronstan Single Swivel Shackle Head Block Ronstan designs and manufactures world-class blocks and pulleys for all types of sailing.FREE SHIPPING
  • Offer #4: $20.00 price + $4.79 shipping estimate = $24.79* total.+$4.79 shipping
  • Offer #5: $25.06 price + $0.00 shipping estimate = $25.06* total. M.W.L.: 250kg(550lbs). Series 20 Ball Bearing Block - Single.FREE SHIPPING

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