Range / Blocks / 20mm dynamic blocks

Back To Back High Load


(1 customer review)

£47.17 ex. VAT

High Load Back To Back

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23 in UK warehouse
Out of stock in US (can be back ordered)

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SKU: A2028HL Category:


Back To Back High Load – High Load Blocks fit between the standard dynamic range and the XHL range. The blocks feature a stainless-steel sheave which runs on a double race of stainless-steel ball bearings. By utilising a stainless-steel sheave with a slight V shape profile, the Allen High Load range offers the ability to be paired with both wire and Dyneema®. This design also reduces the deformation of the sheave under high static loads. These combinations result in less friction, higher working loads, better performance and durability over the acetal sheave Dynamic Block range.

1 review for Back To Back High Load

  1. peters_444

    These keep friction super low at high load – high spec ideal for 49er kite hauliard – pole system (and could be used with far higher loads also). Extremely high durability – will last a long time.

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Back To Back High Load

Titlebreaking load kgfixing hole centres mmlength mmmaximum line diameter mmmaximum working load kgshackle pin mmweight gPrice ex VAT
A202020mm Single Block540-376115-10£8.79
A2020-4035Single With P-Clip540-606115515£10.57
A2020-4036Single With Offset Lacing Eye54015526115-15£11.80
A2020HLSingle High Load540-376250-17.5£22.36
A2020HL-4036Single High Load With Lacing Eye 54015526250-21£25.44
A2020LZSingle Stand-Up Fixed54027436115-15.4£14.67
A2020SCSingle With Swivel Head350-536115415.4£22.31
A2020SHKSingle With Swivel Hook350-586115-19£21.65
A2020Ti3Single Ti3-On540-296115-8£8.79
A2020Ti3HLSingle Ti3-On540-296250-14£22.36
A2020TiiSingle Tii-On 540-296115-8£8.79
A2020XHLExtreme High Load 900-296400-17£81.73
A2021Single Multi Function350-356115-11.5£8.11
A2021FSingle With Fork Head350-486115415.2£13.97
A2021HKSingle With Fixed Head165-656115-17.5£13.55
A2021HLSingle Multi Function With High Load Sheave540-356250-11.5£21.68
A2021SCSingle With Shackle Swivel Head350-526115415.4£20.23
A2022AArticulating Double500-486200-29.1£24.03
A2022FDouble With Fork600-516225415.5£23.93
A2022HLDouble High Load600-486325-42£49.55
A2022LZDouble Stand Up Fixed600-536225-34£28.31
A2022SC20mm Double w/Swivel350-566225435£33.75
A2022TiiDouble Tii-On600-296225-15.6£24.04
A2023Double With Becket600-596225-33.5£23.58
A2023HKDouble With Becket And Hook600-1106225-60.2£37.73
A2024Triple Block650-506320-47.9£32.47
A2024-677Triple With Inverted Cleat650-556320-86.9£74.79
A2024AArticulating Triple650-506300-42.9£34.13
A2024FTriple With Fork650-516320448£54.00
A2024HLTriple High Load650-506400-63£73.14
A2025Triple With Becket650-666320-52.9£35.95
A2025-677Triple, Inverted Cleat & Becket650-666320-86.9£78.26
A202620mm Single Cheek Block350-456115415.3£13.12
A2026-PROFIXCheek Adaptor For A2021------3.8£5.56
A2026HLCheek Block High Load350-456350-21.3£26.69
A2026MSingle Composite Cheek54018336115-12£14.54
A2027Triple, Cleat & Becket650-756320-86.9£78.26
A2027NBTriple With Extended Cleat And No Becket 650-756320-98£78.26
A2028Back To Back540-526115-20£20.00
A2028HLBack To Back High Load540-526300-32£47.17
A2029Linked Singles540-706115-21.8£18.75
A2121Single Through Deck35042546105-10.80£18.00
A2121HLSingle Through Deck Block With Steel Sheave40042546--10.8£31.57
A2122Double Through Deck 35064606105-20£27.01
A2122HLDouble Through Deck Block With Steel Sheave35063756--20£54.15
A2126MDouble Composite Cheek Block54018336225-23£31.97
A4251Single Through Deck40025 x 24326105-30£18.05
A4502Classic Stand Up Single 35027 x 19326105-22£16.42
A4504Double Upstand Block35027 x 19326105-94£38.69
A4710Lightweight Stand Up Single 35026376105-19£12.99
A5849Deck Mounting Plate With Two A2021F35025516115450£42.57