Ronstan RF50101 50mm Single Loop Top Block
SKU: 60914252408

Ronstan RF50101 50mm Single Loop Top Block

$28.90 $32.11
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Ronstan RF50101 50mm Single Loop Top BlockPrecision moulded Acetal sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Head can be locked at 0 or 90 by engaging the grub screw in either the 0 or 90 degree position. Applications: Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10m (33ft) Materials: Acetal ball bearings UV stabilised

Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.
Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.


Applications:

  • Mainsheet
  • Spinnaker sheets
  • Halyards and other primary applications on boats up to 10m (33ft)

Materials:

  • Acetal ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks

Features:

  • Sheave Diameter - 50mm
  • Maximum Rope Diameter - 12mm
  • Maximum working load - 500kg
  • Breaking load 1500kg
  • Weight 97g
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: 60914252408

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Katheryn Rodríguez Colina
Dallas, US
★★★★★ 5
Lentes graduables
Color: Black, Size: 51/17/145
Súper finos y lindos
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Reviewed in the United States on December 8, 2025
J
Verified Purchase
Jessica
Phoenix, US
★★★★★ 5
Corren pequeños
Color: Black, Size: 51/17/145
Corren pequeños!
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Reviewed in the United States on December 4, 2025
I
Verified Purchase
I didn't receive the item i am waiting for my money to come back i would be calling at customers services
Houston, US
★★★★★ 5
Glasses
Color: Black, Size: 51/17/145
Beautiful glasses. So.e people asked me where I bought them. It is so cute.
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Reviewed in the United States on September 6, 2025
J
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Jessenia Soto
Lake Worth, US
★★★★★ 2
Not in perfect shape
Right arm do not touch the base, they don’t look straight when you wear them. They were not in perfec conditions.
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Reviewed in the United States on February 25, 2026
S
Verified Purchase
Sharon Lowry
Lexington, US
★★★★★ 5
Quality
🩷🩷
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Reviewed in the United States on October 5, 2025

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