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Description
Ronstan Series 50 All Purpose Single Loop Head BlockProduct Description Ronstan Series 50 All Purpose Single Loop Head Block Features Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Sheave 2 in. Max. Rope 1 2 in. Max. Cable in Pin in. M. W. L. 1650 lb. B. L. 3310 lb. Weight 3. 5 oz. Product Information All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well
Product Description
Ronstan Series 50 All Purpose Single Loop Head Block
Features
Exceptionally high working loads
Low maintenance, long service life
Self-lubricating sheave
Sheave Ø - 2 in.
Max. Rope Ø - 1/2 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 1650 lb.
B. L. - 3310 lb.
Weight - 3.5 oz.
Product Information
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.
Applications
Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
Materials
U.V. stabilized Acetal sheaves
Impact and U.V. resistant, fiber reinforced Nylon cheeks
Grade 316 stainless steel bearing race
Grade 316 stainless steel load strap
Impact and UV resistant, fiber reinforced Nylon cheeks
Features
Sheave Ø - 2 in.
Max. Rope Ø - 1/2 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 1650 lb.
B. L. - 3310 lb.
Weight - 3.5 oz.
Product Information
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.
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
4.5 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2025
★★★★★ 1
Horribly ‘weird’ sweet flavor
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Horrible taste - synthetic sweetness than destroys my shakes. I bought Thorne because of its high quality but this is one of their products that won’t work for me. I’m struggling through the jar because it’s too expensive to waste. Using cacao powder, cinnamon & cardamom to try to tone down the overwhelming ‘sweet.’
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Absolutely Great Stuff
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla flavored Protein Powder has to be the Best tasting Protein Powder Ever. Literally delicious. Product satisfies your appetite while supplementing your body with needed protein and nutrients. Combined with gym workouts I’ve noticed firmer muscles. A nice noticeable improvement.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
It's a thing...
Flavor Name: Vanilla, Size: 14 Servings (Pack of 1)
I am probably the most skeptical person when it comes to supplements. I’ve tried so many over the years and honestly… most of them felt like a waste of money or just hype.
But I have to say—this combo has completely surprised me.
I’ve been consistently using Thorne protein and creatine, and within a few weeks I started noticing real changes. Not just how I feel, but how I look. My shoulders especially are looking more defined, and I feel stronger in my workouts without feeling jittery or weird like some products can make you feel.
What really stands out to me is how clean and simple it is. No bloating, no heavy feeling, no unnecessary extras—just something that actually supports what I’m already doing.
I also love that it fits easily into my routine. I take my creatine with my morning coffee (super easy habit), and I’ve been doing a protein shake after workouts which has helped a lot with recovery and keeping me on track nutritionally.
I’m currently in a calorie deficit getting ready for a trip, and this has honestly made it feel doable without feeling depleted.
If you’re someone like me who is hesitant about supplements, I’d say this is the first time I’ve actually felt like something made a noticeable difference.
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Reviewed in the United States on April 3, 2026