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
Single Person Dinghy / Laser / 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
 |
A2030F-873 | Single Fork Head With Kicker Key | 450 | - | 8 | 140 | 5 | 77 | 40 | £30.60 |
 |
A2030Tii- | Single Tii-On | 750 | - | 8 | 140 | - | 42 | 24 | £17.22 |
 |
A2030TiiHL- | Single Tii-On With High Load Sheave | 800 | - | 8 | 300 | - | 41 | 37 | £40.39 |
 |
A2031XHL-873- | 30mm Extreme High Load Block With SA.873 | 1000 | - | 8 | 500 | - | 48 | 55 | £165.12 |
 |
A9031-873 | TiiTAN ILCA Vang Block | 1000 | - | 8 | 500 | 5 | 68.8 | 43 | £213.17 |