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November 19, 2020 2 min read
Harken ratchet blocks start at a 40mm sheave size and run up to 75mm sheave size for use on a majority of dinghies and catamarans.
There are four types of Harken ratchet block:
All of these ratchet blocks come in slightly different forms.
The T2 soft attach ratchet blocks are popular because they are lightweight with the flexibility of being able to be lashed or spliced anywhere on the boat. The T2 only comes as a ratchamatic which is an automatic ratchet block. As soon as pressure it put onto the block from the attachment point the ratchet engages, when there is no pressure it releases and doesn't engage.
The carbo blocks are popular where the block isn't going to need to move, or where it will sit and happily do the job of making your sheeting easier. This is the standard block issued for a Laser mainsheet block for example, it sits in the middle of the deck with a spring underneath. Carbo blocks are attached using a shackle.
These are available with an on/off switch in the centre, or as an automatic ratchet which can be adjusted using the allen key provided with the block.
The power3 ratchets are the latest blocks from Harken.
Available as a carbo on/off, automatic carbo and T2 these blocks have two different sheave designs which are more aggressive and grip the rope to provide either 1.5x or 2x the grip you would get from a standard block.
You can see all of the ratchet blocks we sell at Sailing Chandlery using the link below. Make sure you have a look at the red versions to add a little bit of extra colour to your boat.
Explore the range of Harken Ratchet Blocks at Sailing Chandlery
If you have any questions about any of the blocks we sell at Sailing Chandlery then get in touch with our friendly team who are always happy to help.
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Amazing service, the staff got our order in with no issue and quick delivery. The replica mast are a perfect alternative.
Excellent service. Arrived very quickly. Highly recommend, have used Sailing Chandlery several times - always quick and efficient.
I have the 270 boots 2020, But these 170 boots are great, much easier to get on and off and very grippy and comfortable
Great range of products, very efficient service, item arrived well packed and on time
Really strong, does what it needs to!
Great product, does the job for a good price
Perfect product at good price and fast delivery. Thank you.
Best spring/summer hiking wetsuit.
As per usual the Sailing Chandlery team got these to me in a flash! Amazing service!!!
I have previously used the Superwarm version of this hiker and it was brilliant!
I purchased these as I get far too hot in my winter hikers during the sweaty summer months!
Only used once so far, but were warm enough in 15 degrees C and worked exactly as expected!
Good size handle, comfortable grip. I find I have to go down a size in needle than that advised for the rope I’m splicing.
Fantastic service and reasonable prices
Excellent service product delivered very quickly and exactly the item I required.
These were fine. But what was an issue was the number of emails I received after.
This is my most used item in my sailing bag. Keeps me warm on colder days underneath layers and I also wear it on top in the summer. The fleece lining inside is very comfortable.
These are brilliant socks. I tuck them inside my Superwarm wetsuit and because the seems are sealed it stops any water getting to my feet.
Small and springy - exactly what I needed !
But usual great service from Sailing Chandlery !!
