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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan Series 15 BB Exit BlockProduct Description Ronstan Series 15 BB Exit Block Featuring a formed single piece housing for maximum strength and minimal rope wear. Features: Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O ring to separate running line from head lashing or fixing Features a flush rivet to minimize cutout and
Product Description
Ronstan Series 15 BB Exit Block
Featuring a formed single piece housing for maximum strength and minimal rope wear.
Features:
Smallest and lightest ball bearing block available
Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction
Single loop head blocks include an O-ring to separate running line from head lashing or fixing
Features a flush rivet to minimize cutout and facilitate installation.
Specifications:
Sheave Ø - 5/8 in. (15mm)
Max. Rope Ø - 3/16 in. (5mm)
M.W.L. - 260 lbs. (120 kg)
B. L. - 1210 lbs. (550 kg)
Weight - 0.5 oz. (14 g)
Applications:
Dinghy control lines
Vangs, cunninghams and tweakers
Shock cord tensioning systems
Materials:
BB sheaves: UV stabilized acetal
Ball bearings: Stainless steel
Cheeks: Grade 316 stainless steel
Featuring a formed single piece housing for maximum strength and minimal rope wear.
Features:
Specifications:
Applications:
Materials:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Great price, but don't stack multiple wires
Size: 300A
I used this as a junction point on a 1 gauge wire. I added an 8 gauge wire to one side, and the cover would not seat. I had to bend and maneuver the ring terminals to make the cover catch. For the price of the items, if used without any secondary wires attached and interior use only, this is an unbeatable deal.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Great Quality
Size: 300A
Exactly what I needed. Good quality and worked perfectly.
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Reviewed in the United States on May 21, 2025
★★★★★ 5
Great
Size: 300A, Size: 300A
Easy to install works great and really good quality and clean looking
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Reviewed in the United States on February 24, 2025
★★★★★ 5
Nice!
Size: 300A
I was not expecting these to be this nice. You just can't beat the value. They look great and feel like they will hold up a long time. I definitely recommend!
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Reviewed in the United States on July 17, 2024
★★★★★ 5
Solid choice for fuse holder
Size: 300A Fuse Holder
It’s awesome, solid connections for running 0 gauge wire. No issues after using for months! Might upgrade to using 0 gauge wire ferrules to use with this but for now everything is working well.
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Reviewed in the United States on January 14, 2026