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Description
Ronstan RF55101 Series 55 Orbit Single BlockRonstan RF55101 Orbit Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting. General Range Information: Ultra Lightweight Low friction 2 stage Orbital ball bearing system Highest working load in its class Easily fitted and securely
Ronstan RF55101 Orbit Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.
General Range Information:
- Ultra Lightweight
- Low friction 2-stage Orbital ball bearing system
- Highest working load in its class
- Easily fitted and securely retained Dyneema Link head
- Low profile and compact
- High performance cleating
- Sheave Diameter 55mm
Technical:
- Sheave Diameter 55mm
- Maximum Rope Diameter 10mm
- Maximum Working Load 500kg
- Breaking Load 1000kg
- Weight 68g
Materials:
- Ball bearings - High compression strength carbon black Acetal
- Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon
- Frame/Cheeks - Toughened, glass fibre reinforced Nylon
- Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema
Applications:
- Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)
- Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)
- Halyard, Vang and Backstay application on boats to 8m (26ft)
- Control line applications on larger yachts
| We recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items. |
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4.7 ★★★★★
Based on 1192 reviews
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Product Reviews
★★★★★ 5
Great product, no damage
Format: Paperback
Product came in great condition. I was very happy with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Superman
Format: Paperback
Fantastic new take on the Man of Hope. Set to reflect the reality of our current world and the and people trying to save it.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
LOVE the absolute universe
Format: Paperback
If you have heard of DC's Absolute Universe, this is a great starting point. The art, the storytelling, and the new revision is all a blast to read. I highly recommend this and all the others in the absolute series.
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Reviewed in the United States on January 6, 2026
★★★★★ 5
Super good
Format: Paperback
This was my introduction to the absolute dc comics and boy did it make a good first impression. The art style is great and the writing too, it’s fast paced in the current sections and slower in the flashbacks making sure the pacing is good throughout the whole book. The length is good for how much you pay being able to be finished in 30 minutes to an hour for fast readers.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Just as enjoyable as Vol 1, if not better.
Batman and Robin Vol 2: Batman vs. Robin contains Batman and Robin #7-12. Just as in Vol 1, the art is all done by Frank Quitely and is very enjoyable. This continues the story of Batman and Robin Vol 1 which raps up in Vol 3 and is my favorite instalment of the trilogy (if you want to call it that). The story has some twists and turns and the reveal at the end is totally worth it, especially since there are clues dropped along the way. As I have said in my other reviews, this is part of the Grant Morrison Arc that will be detailed below, but the Batman and Robin trilogy could be read alone outside of the other stories. This picks up from Vol 1 after the events of Batman: R.I.P. and Battle for the Cowl. Again these are my favorite B&R as the dynamic between the two is very enjoyable to read and watch and the story is engaging.
Pros:
-B&R are amazing
-Art is solid
-New characters are fantastic
-Original story line
-So many little clues as to what is going on
-Grant Morrison
Cons:
-Grant Morrison
-Relatively Short
-Vol 3 (see review)
*Morrison's Story Arc is as follows:
Batman and Son (Included in Black Glove Deluxe Edition)
Batman: The Black Glove
Batman: RIP
Batman: Batman and Time (or Final Crisis but still needs 701 and 702)
Batman and Robin Volume 1-3
Batman: The Return of Bruce Wayne (Technically happens during Batman and Robin Volumes 1 and 2)
Batman Incorporated (and Leviathan Strikes)
Batman Incorporated Vol 1: Demon Star (New 52)
Batman Incorporated Vol 2: Gotham's Most Wanted (New 52)
A readers guide to Grant Morrison's Batman is a great help if you are looking at the whole series.
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Reviewed in the United States on August 26, 2016