Product Range

Range / Blocks / 20mm dynamic blocks

20mm Dynamic Blocks

Our go-to low friction, fast rolling, small pulley. It’s lightweight and strong, making it ideal for dinghies, windsurfing, kitesurfing, paragliding and anything else that runs smaller diameter lines. 


Available with a wide range of accessories and features to suit most control line applications.


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. 

Filters:

Block Configuration

  • x
  • xxx
  • xxxx
  • xx
  • z
  • zzz
  • zz
  • Clear All
SKU Title breaking load kgfixing hole centres mmlength mmmaximum line diameter mmmaximum working load kgshackle pin mm Weight g Price
A2020 20mm Single Block 540-376115- 10 £12.52
A2020-4035 Single With P-Clip 540-6061155 15 £15.05
A2020-4036 Single With Offset Lacing Eye 54015526115- 15 £16.79
A2020F Single With Fork Head 350-3961154 15 £19.88
A2020HL Single High Load 540-376250- 17.5 £31.82
A2020HL-4036 Single High Load With Lacing Eye 54015526250- 21 £36.20
A2020HLSHK Single With Swivel Hook 350-57.86250- 24 £50.11
A2020LZ Single Stand-Up Fixed 54027436115- 15.4 £20.88
A2020SC Single With Swivel Head 350-5361154 15.4 £31.75
A2020SHK Single With Swivel Hook 350-586115- 19 £30.80
A2020Ti3 Single Ti3-On 540-296115- 8 £12.52
A2020Ti3HL Single Ti3-On 540-296250- 14 £31.82
A2020Tii- Single Tii-On 540-296115- 8 £12.52
A2020XHL Extreme High Load 900-296400- 17 £116.32
A2021 Single Multi Function 350-356115- 11.5 £11.54
A2021F Single With Articulating Fork Head 350-4861154 15.2 £19.88
A2021HK Single With Fixed Hook 165-656115- 17.5 £19.28
A2021HL Single Multi Function With High Load Sheave 540-356350- 11.5 £30.85
A2021SC Single With Swivel Fork Head 350-5261154 15.4 £28.79
A2022 Double 600-486225- 31.6 £31.82
A2022A Articulating Double 600-486225- 29.1 £34.19
A2022AHL Articulating Double With High Load Sheave 600-47.66325- 42 £72.88
A2022F Double With Fork 600-5162255 15.5 £34.04
A2022HL Double High Load 600-486325- 42 £70.51
A2022LZ Double Stand Up Fixed 600-536225- 34 £40.30
A2022SC 20mm Double With Swivel 350-5662254 35 £48.04
A2022SHK Double With Swivel Hook 500--6225- 35 £48.04
A2022Tii- Double Tii-On 600-296225- 15.6 £34.21
A2022TiiHL Double Tii-On High Load 600-29.56250- 25 £72.92
A2022XHL Double Extreme High Load Block 900-296600- 30 £155.00
A2023 Double With Becket 600-596225- 33.5 £33.55
A2023HK Double With Becket And Hook 600-1106225- 60.2 £53.70
A2023XHL Double Extreme High Load With Becket 900-386600- 33 £158.75
A2024 Triple Block 650-506320- 47.9 £46.21
A2024-677 Triple With Inverted Cleat 650-556320- 86.9 £106.44
A2024A Articulating Triple 650-506320- 42.9 £48.56
A2024AHL Articulating Triple With High Load Sheave 650-47.65400- 63 £106.44
A2024F Triple With Fork 650-5163204 48 £76.85
A2024HL Triple High Load 650-506400- 63 £104.09
A2025 Triple With Becket 650-666320- 52.9 £51.17
A2025-677 Triple, Inverted Cleat & Becket 650-666320- 86.9 £111.37
A2026 Single Cheek Block 350-4561154 15.3 £18.67
A2026-PROFIX Cheek Adaptor For A2021 ------ 3.8 £7.91
A2026HL Single Cheek Block High Load 350-456350- 21.3 £37.98
A2026M Single Composite Cheek 54018336115- 12 £20.70
A2027 Triple, Cleat & Becket 650-756320- 86.9 £111.37
A2027NB Triple With Extended Cleat And No Becket 650-756320- 98 £111.37
A2028 Back To Back 540-526115- 20 £28.46
A2028HL Back To Back High Load 540-526300- 32 £67.13
A2029 Linked Singles 540-706115- 21.8 £26.68
A2121 Single Through Deck 35042546105- 10.8 £25.62
A2121HL Single Through Deck Block With Steel Sheave 40042546-- 10.8 £44.93
A2122 Double Through Deck 35064606105- 20 £38.45
A2122HL Double Through Deck Block With Steel Sheave 35063756-- 20 £77.05
A2124 Upstand Block 55022318115- 20.6 £23.38
A2126M Double Composite Cheek Block 54018336225- 23 £45.50
A4251 Single Through Deck 40025 x 24326105- 30 £25.68
A4502 Classic Stand Up Single 35027 x 19326105- 22 £23.38
A4504 Double Upstand Block 35027 x 19326105- 94 £55.06
A4710 Lightweight Stand Up Single 35026376105- 19 £18.48
A5849 Deck Mounting Plate With Two A2021F 350255161154 50 £60.59