SKU: 20988773128

Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]

Sale price$46.59 Regular price$51.77
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]Series 50 All Purpose Block Single Stand Up Features: Exceptionally high working loads Low maintenance, long service life Self lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock universal head Slotted pin shackle eliminates fouled lines Mount with 2 x 5mm (3 6") fasteners (not supplied) All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless

Series 50 All Purpose Block - Single Stand Up

Features:

  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating Acetal polymer sheave ensures low friction and extreme durability
  • Captive Lock™ universal head
  • Slotted pin shackle eliminates fouled lines
  • Mount with 2 x 5mm (3/6") fasteners (not supplied)

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Becket pin is removable so line can be spliced prior to fitting.

Applications:

  • Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
  • S60 - on boats up to 12m (40ft)
  • Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs
  • On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.

Materials:

  • Grade 316 stainless steel load strap
  • Impact and UV resistant, fiber reinforced Nylon cheeks
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20988773128

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4.2 ★★★★★
Based on 10 reviews
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D
Verified Purchase
Diego
Port Orchard, US
★★★★★ 5
Fit Perfectly, Very Comfortable
Size: 11, Color: Black
I really love this shoe brand. I always play it safe with them — they’re comfortable, well-priced, and consistently reliable. This particular pair stands out because it’s very lightweight, extremely comfortable, and fits me perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
A
Verified Purchase
awesome
Lexington, US
★★★★★ 3
Only last one year
Size: 12, Color: Brown
These shoes were comfortable for a time but only last me for almost exactly a year. Mostly walking around an office and one of the soles completely fell off. With the other shoe trending that way.
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Reviewed in the United States on May 3, 2026
C
Verified Purchase
Chuck H.
Phoenix, US
★★★★★ 5
Look Good, and Comfortable!
Size: 12, Color: Black
These shoes fit my wide feet and are comfortable as well! I have received compliments on them and I would definitely buy them again.
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Reviewed in the United States on May 13, 2026
D
Verified Purchase
Dan Che
Los Angeles, US
★★★★★ 5
Perfect Blend of Comfort and Style
Size: 9, Color: Brown, Size: 9, Color: Brown
I recently purchased size 9 of these shoes, and they exceeded my expectations in every way! Here’s what I love about them: 1. Comfort: The moment I put them on, I noticed how soft and supportive they felt. The cushioning provides all-day comfort, making them perfect for long walks, workdays, or running errands. 2. Fit: The sizing is spot-on! I ordered my usual size, and they fit perfectly with no need to size up or down. There’s enough room for my toes to move without feeling too loose or tight. 3. Style: These shoes look even better in person. The design is sleek and versatile, making them easy to pair with both casual and semi-formal outfits. I’ve received several compliments already! 4. Durability: I put it on the day of purchase. After wearing them daily for a couple of days, they still look brand new. The stitching and material seem high-quality and built to last. 5. Value for Money: For the price, these shoes deliver exceptional value. You’re getting premium comfort and style without breaking the bank. Final Thoughts: If you’re looking for shoes that offer comfort, style, and durability, I highly recommend giving these a try. I’ll definitely be considering another pair in a different color soon! To conclude, I’m very happy for this purchase. Will definitely buy again.
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Reviewed in the United States on January 13, 2025
R
Verified Purchase
Roderick
Waukegan, US
★★★★★ 5
Great Purchase
Size: 12, Color: Black
These shoes are great. They look great and extremely comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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