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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

  • Cheek
  • Double
  • Single
  • Triple

Sheave Type

  • Dynamic
  • High Load
  • XHL

Accessories

  • Back To Back
  • Becket
  • Cam Cleat
  • Flip Flop
  • Fork
  • Hook
  • Lacing Eye
  • None
  • Swivel
  • Upstand
  • Clear All
SKU Title Maximum Line Diameter mmShackle Pin mmBreaking Load KgMaximum Working Load KgFixing Hole Centres mm Length mm Weight g Price
A202020mm Single Block6-540115-3710£14.34
A2020LZSingle Stand-Up Fixed6-540115274315.4£23.93
A2026Single Cheek Block64350115-4515.3£21.40
A2021Single Multi Function6-350115-3511.5£12.73
A2021HKSingle With Fixed Hook6-165115-6517.5£21.25
A2021FSingle With Articulating Fork Head64350115-4815.2£22.78
A2021SCSingle With Swivel Fork Head64350115-5215.4£32.98
A2022Double6-600225-4831.6£36.46
A2023Double With Becket6-600225-5933.5£38.44
A2024Triple Block6-650320-5047.9£52.94
A2025Triple With Becket6-650320-6652.9£58.61
A2027Triple, Cleat & Becket6-650320-7586.9£127.57
A2026-PROFIXCheek Adaptor For A2021-----3.8£9.05
A4968Flip Flop6-350105163319£30.86
A4502Classic Stand Up Single6-35010527 x 193222£23.38
A2020Tii-Single Tii-On6-540115-8£13.80
A2022FDouble With Fork65600225-5115.5£39.00
A2028HLBack To Back High Load6-540300-5232£76.91
A2020SCSingle With Swivel Head64350115-5315.4£36.38
A2024FTriple With Fork64650320-5148£88.02
A2026MSingle Composite Cheek6-540115183312£17.69
A2022Tii-Double Tii-On6-600225-2915.6£39.19
A2028Back To Back6-540115-5220£32.60
A2022SC20mm Double With Swivel64350225-5635£55.02
A2020-4036Single With Offset Lacing Eye6-540115155215£19.22
A2121Single Through Deck6-350105425410.8£28.24
A2122Double Through Deck6-350105646019.1£44.04
A2020HLSingle High Load6-540250-3717.5£36.46
A2020SHKSingle With Swivel Hook6-500225-5819£35.28
A2020-4035Single With P-Clip65540115-6015£16.60
A2023HKDouble With Becket And Hook6-600225-11060.2£61.50
A2029Linked Singles6-540115-7021.8£29.41
A2024-677Triple With Inverted Cleat6-650320-5586.9£121.92
A2025-677Triple, Inverted Cleat & Becket6-650320-6686.9£127.57
A2020XHLExtreme High Load6-900400-2917£133.24
A4710Lightweight Stand Up Single6-350105263719£21.17
A2126MDouble Composite Cheek Block6-540225183323£52.13
A2022LZDouble Stand Up Fixed6-600225-5334£46.15
A2027NBTriple With Extended Cleat And No Becket6-650320-7598£127.57
A5849Deck Mounting Plate With Two A2021F64350115255150£69.41
A2020HL-4036Single High Load With Lacing Eye6-540250155221£41.47
A4251Single Through Deck6-40010525 x 24£25.68
A4504Double Upstand Block6-35010527 x 19£58.08
A2022HLDouble High Load6-600325-£80.77
A2024HLTriple High Load6-650400-£119.23
A2122HLDouble Through Deck Block With Steel Sheave6-350-6333.3£88.26
A2121HLSingle Through Deck Block With Steel Sheave6-400-4217.7£51.47
A2020Ti3Single Ti3-On6-540115-8£13.80
A2021HLSingle Multi Function With High Load Sheave6-350250-11.5£35.34
A2026HLSingle Cheek Block High Load6-350350-£43.50
A2022AArticulating Double6-600225-£39.16
A2024AArticulating Triple6-650320-£55.63
A2020Ti3HLSingle Ti3-On6-540250-14£36.46
A2022SHKDouble With Swivel Hook6-500225-£55.02
A2020FSingle With Fork Head64350115-£22.78
A2022XHLDouble Extreme High Load Block6-900600-2830£177.54
A2023XHLDouble Extreme High Load With Becket6-900600-£181.85
A2020HLSHKSingle With Swivel Hook6-350250-£57.41
A2022AHLArticulating Double With High Load Sheave6-600325-£83.47
A2022TiiHLDouble Tii-On High Load6-600250-25£83.52
A2024AHLArticulating Triple With High Load Sheave5-650400-£121.92
A2124Upstand Block8-55011522£26.77
A2020-30Linked 20 & 30mm Singles6/8-540115-£32.21
A2020TiihlSingle High Load tii-On6-540250-14£36.46
A2020WEBSingle Webbing Block5-250115-9.5£13.80
A2026MHLSingle Composite Cheek Block with High Load Sheave6-5402501818£34.38