Christmas Opening Hours
Please be advised that Allen Brothers will close at 15:00 on 20th December and reopen on 6th January.
Orders placed during this period will be processed upon our return.
Wishing you a Merry Christmas and a Happy New Year!
Shop by boat
Catamaran / Dart 16 / Blocks / 30mm dynamic blocks
Allen 30mm dynamic blocks are super smooth, high performing and ultra-reliable. Available with a wide range of accessories and features to suit most control line applications on dinghies and keelboats.
Dynamic Bearings - Twin rows of stainless steel ball bearings running on a stainless steel axle provide superior rolling speeds and durability when compared to plastic alternatives.
Ultra-Strap – A stainless steel strap which holds the block together and provides a strong, reliable and rope friendly attachment point.
Becket – The hole through the middle of the block can be used as a tying off point (becket).
Maximum Working Load – If exceeded the block may not perform as designed. Breaking Load – The load at which a major block failure is likely to occur.
| SKU | Title | breaking load kg | fixing hole centres mm | maximum line diameter mm | maximum working load kg | shackle pin mm | Length mm | Weight g | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
 |
A2030 | Single | 750 | - | 8 | 140 | - | 49 | 26 | £17.22 |
 |
A2030SC | 30mm Block w/Swivel | 450 | - | 8 | 140 | 4 | 67.97 | 36 | £43.55 |
 |
A2034 | Triple | 1750 | - | 8 | 490 | - | 63 | 103 | £62.06 |
 |
A2034-676 | Triple With Inverted Cleat | 1750 | - | 8 | 490 | - | 65 | 193 | £122.06 |
 |
A2035-676 | Triple With Becket And Inverted Cleat | 1750 | - | 8 | 490 | - | 83 | 200 | £132.54 |