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Sailing - Blocks

Improve sailing control and performance with premium sailing blocks designed to provide smooth operation, reliable handling, and dependable support for your rigging system. Essential for sailboats, cruising vessels, and racing applications, quality blocks help manage lines efficiently while reducing friction and improving overall sailing performance. Our Sailing Blocks collection features pulley blocks, single blocks, double blocks, triple blocks, swivel blocks, deck blocks, ball bearing blocks, and rigging accessories designed for various sailing applications. Built with durable materials and marine-grade construction, these products are engineered to withstand saltwater exposure, weather conditions, and demanding use on the water. Whether upgrading your rigging setup, replacing worn components, or improving sail handling, reliable sailing blocks provide the strength and efficiency sailors need. Featuring trusted marine brands recognized for quality craftsmanship and performance, our Sailing Blocks collection delivers dependable solutions for recreational sailors, racers, and professionals. Shop today and equip your vessel with high-quality sailing blocks built for smoother and more confident sailing adventures.

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  • Lewmar 60mm HTX Block - Single [29196001]
    Lewmar

    Lewmar 60mm HTX Block - Single [29196001]

    £55.01
    £81.75
    £55.01
    60mm HTX Block - SingleYears of design and manufacturing experience coupled with collaboration with boat builders, designers, and sailors have resulted in the Lewmar HTX Hardware Range.  Drawing upon the design of the Racing Range, the HTX blocks are constructed simply from high-quality materials,...
    £55.01
    £81.75
    £55.01
  • Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head [RF35100]
    Ronstan

    Ronstan Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head [RF35100]

    £18.25
    £21.47
    £18.25
    Series 30 Ball Bearing Orbit Block™ - Single - Becket - Swivel Shackle HeadBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball...
    £18.25
    £21.47
    £18.25
  • Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140]
    Ronstan

    Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140]

    £26.86
    £31.59
    £26.86
    Series 40 All Purpose Block - Single - Stand UpAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long...
    £26.86
    £31.59
    £26.86
  • Lewmar 72mm Synchro Block - Single [29927201BK]
    Lewmar

    Lewmar 72mm Synchro Block - Single [29927201BK]

    £40.14
    £58.70
    £40.14
    72mm Synchro Block - SingleLewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling.  Using a combination of scientifically optimized block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on...
    £40.14
    £58.70
    £40.14
  • Schaefer Single Aluminum Block - 51mm Sheave [504-05]Schaefer Single Aluminum Block - 51mm Sheave [504-05]
    Schaefer Marine

    Schaefer Single Aluminum Block - 51mm Sheave [504-05]

    £54.27
    £69.82
    £54.27
    Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. Specifications: Sheave Dia. 2" (51mm) Thickness 15/16" (24mm) Width 2 1/8" (54mm) Length 4...
    £54.27
    £69.82
    £54.27
  • Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]
    Ronstan

    Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]

    £38.49
    £45.29
    £38.49
    Series 50 All Purpose Block - Single Stand UpFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Mount with 2 x 5mm (3/6")...
    £38.49
    £45.29
    £38.49
  • Harken 22mm Double Micro Block [226]
    Harken

    Harken 22mm Double Micro Block [226]

    £28.22
    £31.64
    £28.22
    22mm Double Micro BlockLow-friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm / 7/8in. Length: 51mm / 2in. Weight: 43g / 1.5oz. Maximum line: 6mm / 1/4in. Maximum working load: 159kg / 350lb Breaking load: 544kg/ 1200 lb
    £28.22
    £31.64
    £28.22
  • Harken 40mm Carbo Air Pivoting Lead Block w/Aluminum Cam-Matic Cleat [2156]
    Harken

    Harken 40mm Carbo Air Pivoting Lead Block w/Aluminum Cam-Matic Cleat [2156]

    £66.88
    £75.99
    £66.88
    40mm Carbo Air Pivoting Lead Block with Aluminum Cam-Matic® CleatHigh-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “headknockers” on dinghies and beachcats for sheeting directly from the boom. Hole spacing and rivet size are the same...
    £66.88
    £75.99
    £66.88
  • Harken 40mm Carbo Air Fiddle Block w/Swivel Becket [2656]
    Harken

    Harken 40mm Carbo Air Fiddle Block w/Swivel Becket [2656]

    £43.83
    £49.74
    £43.83
    40mm Carbo Air Fiddle Block with Swivel & BecketLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an...
    £43.83
    £49.74
    £43.83
  • Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
    Schaefer Marine

    Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]

    £149.44
    £201.83
    £149.44
    Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment. Specifications: Track Size 1" x 1/8" (25 mm x 3 mm) Max....
    £149.44
    £201.83
    £149.44
  • Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140]
    Ronstan

    Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140]

    £23.27
    £27.38
    £23.27
    Series 30 Ball Bearing Orbit Block™ - Stand Up SwivelBall Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction...
    £23.27
    £27.38
    £23.27
  • Ronstan Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle Head [RF46100]
    Ronstan

    Ronstan Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle Head [RF46100]

    £57.50
    £67.65
    £57.50
    Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle HeadAutomatic RatchetWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the...
    £57.50
    £67.65
    £57.50
  • Harken 40mm Carbo Air Block w/Cam Cleat [2645]
    Harken

    Harken 40mm Carbo Air Block w/Cam Cleat [2645]

    £92.90
    £105.80
    £92.90
    40mm Carbo Air Block with Cam CleatLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave Ø (mm)40 mm Sheave Ø (in)1...
    £92.90
    £105.80
    £92.90
  • Harken 16mm Block w/Swivel [417]
    Harken

    Harken 16mm Block w/Swivel [417]

    £23.76
    £27.06
    £23.76
    16mm Block with SwivelThe 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working...
    £23.76
    £27.06
    £23.76
  • Ronstan Series 40 All Purpose Block - Double Block - Full Swivel Head [RF41200]
    Ronstan

    Ronstan Series 40 All Purpose Block - Double Block - Full Swivel Head [RF41200]

    £41.19
    £48.46
    £41.19
    Series 40 All Purpose Block - Double Block - Full Swivel HeadAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and...
    £41.19
    £48.46
    £41.19
  • Barton Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mm [N01280]
    Barton Marine

    Barton Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mm [N01280]

    £12.76
    £14.18
    £12.76
    Plain Bearing Pulley Block Back to Back Swivel Block - Size 1, 30mmThe Size 1 Plain Bearing Blocks have a 30mm (1-3/16") sheave. The range is designed with an internal steel frame for added strength and durability. Also available in ball bearing sheave options,...
    £12.76
    £14.18
    £12.76
  • Barton Marine Series 5 Fiddle Swivel Block - 54mm [N05430]
    Barton Marine

    Barton Marine Series 5 Fiddle Swivel Block - 54mm [N05430]

    £58.32
    £64.81
    £58.32
    Series 5 Fiddle Swivel Block- 54mmPlain Bearing BlocksBarton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.Specifications Sheave size: 54mm x 17mm Max rope diameter: 12mm Safe working load:...
    £58.32
    £64.81
    £58.32
  • Barton Plain Bearing Pulley Block Single Swivel - Size 6 - 64mm [N06130]
    Barton Marine

    Barton Plain Bearing Pulley Block Single Swivel - Size 6 - 64mm [N06130]

    £54.38
    £60.43
    £54.38
    Plain Bearing Pulley Block Single Swivel - Size 6 - 64mmThe Size 6 Barton blocks are designed as our high-load cruiser block range and are of rugged construction. It features high-grade injection moulded side plates, with all load-carrying components from 316 grade stainless steel....
    £54.38
    £60.43
    £54.38
  • Barton Single DO 550 Rope Clutch Cruising Racing Max 12mm Line [81500]
    Barton Marine

    Barton Single DO 550 Rope Clutch Cruising Racing Max 12mm Line [81500]

    £67.55
    £75.05
    £67.55
    Single DO 550 Rope Clutch Cruising Racing Max 12mm LineFor cruising and racing yachts, offering a holding power of up to 550 kgs. Modern, high-performance materials. Manufactured from modern lightweight materials, the DO 550 moulded parts are made from high-grade plastics which are strong, light,...
    £67.55
    £75.05
    £67.55
  • Schaefer Clear Step Lead Block f/1" Stanchions [506-44]Schaefer Clear Step Lead Block f/1" Stanchions [506-44]
    Schaefer Marine

    Schaefer Clear Step Lead Block f/1" Stanchions [506-44]

    £60.22
    £78.00
    £60.22
    Clear Step Lead Block for 1" StanchionsUnique design leads your furling control line outside of your stanchions for a clean lead aft to the cockpit. Stainless cheeks with Delrin(tm) ball bearing sheave ensure low-friction and high strength. Locks in place with a small set...
    £60.22
    £78.00
    £60.22