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Mainsheet Jammers

Our range of mainsheet jammers from Harken, Allen, Selden and Ronstan are light weight, innovative and designed to optimise mainsheet jamming.

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  • U-Adapter Assembly for 3/8 Post
    Harken
    Price: £8.62 RRP: £9.58 | Save £0.96
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  • Light Weight Swivels Fork to Short Fork
    £9.53
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  • Light Weight Swivels Fork to Fork
    £9.53
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  • Swivel Base Boy Fitting
    £10.68
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  • Stainless Steel Universal Swivel Base
    Allen
    £11.53
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  • Stand Up Base, Suits S40 BB & RT Orbit Blocks
  • Stand Up Base Suits S55 BB and RT 55mm
    £16.81
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  • Swivel Base to suit BB & RT Orbit Block
    £29.00
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  • 360 Rotation with Optional Stop at 45/60/80 Swivel Cleat
    Allen
    Price: £42.40 RRP: £47.11 | Save £4.71
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  • Stand Up Base Adapter
    Price: £42.59 RRP: £47.32 | Save £4.73
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  • Small Comp Swivel Cleat
    £42.69
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  • Mast Swivel RF5
    £43.43
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  • Swivel Cleat
    Allen
    Price: £44.75 RRP: £49.72 | Save £4.97
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  • Spinlock PXR Deck Swivel Cleat (2-6mm)
    £46.20
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  • Swivel Cleat With Removable Sheave
    Allen
    Price: £46.44 RRP: £51.60 | Save £5.16
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  • Mast Swivel 27
    £46.50
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  • Small Swivel Lead with Composite Cleat Swivel Cleat
    Allen
    Price: £48.08 RRP: £53.42 | Save £5.34
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  • 25 mm Low-Load Base swivel
    Harken
    Price: £49.92 RRP: £55.47 | Save £5.55
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  • Spinlock Vertical Pivot PXR Camcleat (2-6mm)
    £50.92
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  • Large Swivel Lead with Composite Cleat Swivel Cleat
    Allen
    Price: £51.10 RRP: £56.78 | Save £5.68
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  • Mast Swivel 38
    £53.34
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  • Spinlock PXR Race Cleat with Swivel for 8-10mm Rope
    £56.71
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  • Bullseye Swivel with Midi Cleat
    £61.26
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  • 29mm Carbo Pivot Lead & Carbo Cam Cleat
    Harken
    Price: £62.11 RRP: £69.01 | Save £6.90
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