Wire Block - Tubular Rivet Head w/Nylatron® Sheave - 25mm Sheave Diameter Wire blocks have purpose designed narrow sheaves and grooves. Applications: Wire blocks suit halyards, vang and backstay applications Materials: Grade 316 stainless steel cheeks Nylatron® sheave Specifications: Sheave Ø: 25mm(1") Max. Cable Ø: 3mm(1/8") M.W.L:450kg(990lbs) B.L.: 900kg(1,980lbs) Weight: 40kg(1.4oz)

Wire Block - Tubular Rivet Head w/Removable Nylatron® Sheave - 45mm(1-3/4") Sheave Diameter Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination Features: Flared cheeks to minimise chafing Removable sheaves Applications: Wire blocks suit halyards, vang and backstay applications Materials: Grade 316 stainless steel cheeks Nylatron® sheave Specifications: Sheave Ø: 45mm(1-3/4") Max. Cable Ø: 6mm(1/4") M.W.L:850kg(1,870lbs) B.L.: 1,700kg(3,740lbs) Weight: 88kg(3.1oz)

Wire Block w/Removable Clevis Pin Head - Nylatron® Sheave - 25mm(1") Sheave Diameter Wire blocks have purpose designed narrow sheaves and grooves. Features: Removable clevis pin head Applications: Wire blocks suit halyards, vang and backstay applications Materials: Grade 316 stainless steel cheeks Nylatron® sheave Specifications: Sheave Ø: 25mm(1") Max. Cable Ø: 3mm(1/8") M.W.L:450kg(990lbs) B.L.: 900kg(1,980lbs) Weight: 40kg(1.4oz)

Wire Block - Ferrule Top w/Removable Nylatron® Sheave - 45mm(1-3/4") Sheave Diamter Wire blocks have purpose designed narrow sheaves and grooves.Removal sheave for easy fitting and without cutting the wire termination Features: Flared cheeks to minimise chafing Removable sheaves Applications: Wire blocks suit halyards, vang and backstay applications Materials: Grade 316 stainless steel cheeks Nylatron® sheave Specifications: Sheave Ø: 45mm(1-3/4") Max. Cable Ø: 6mm(1/4") M.W.L:850kg(1,870lbs) B.L.: 1,700kg(3,740lbs) Weight: 80kg(2.8oz)

Series 25 Utility Block™ - Single - Loop Head Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters, etc on larger boats Materials: U.V. stabilized acetal sheaves Grade 316 Stainless Steel cheeks Specifications: Sheave Ø: 25mm(1") Max. Rope Ø: 6mm(1/4") M.W.L.: 300kg(660lbs) B. L.: 600kg(1,320lbs) Weight: 15g(0.5oz)

Series 40 All Purpose Block - Double Block - Full Swivel Head All 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 service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Head swivels freely. Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 600kg(1,320lbs) B. L.: 1,200kg(2,650lbs) Weight: 135g(4.8oz)

Series 40 All Purpose Block - Single - Universal Head All 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 service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 400kg(880lbs) B. L.: 1,000kg(2,200lbs) Weight: 71g(2.5oz)

Series 40 Ball Bearing Block - Single - Universal Head Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. Stabilized Acetal sheaves Acetal ball bearings Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 350kg(770lbs) B. L.: 1,000kg(2,200lbs) Weight: 70g(2.5oz)

Series 50 High Load Block - Single - Universal Head Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Exceptionally high working loads Lightweight Cheek cut-outs for easy bearing maintenance Suitable for both rope or wire Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10M(33') Materials: Nylatron® sheave Grade 316 stainless steel load strap and head fitting Impact and U.V. resistant, fiber reinforced Nylon cheeks Specifications: Sheave Ø: 50mm(2") Max. Rope Ø: 12mm(1/2") Max. Cable Ø:5mm(3/16") Max. Pin Ø: 5mm(3/16") M.W.L.: 800kg(1,760lbs) B. L.: 1,500kg(3,310lbs) Weight: 117g(4.1oz)

Nylatron Sheave Box - Single Upright Lead Block Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads. Features: The external tabs can be formed to fit the spar profile before fastening Applications: Typically used in dinghy spars for control lines such as outhauls Materials: Nylatron® sheave Grade 316 stainless steel load housing Specifications: Sheave Ø: 22mm(7/8") Max. Rope Ø: 3mm(1/8") Max. Cable Ø: 3mm(1/8") Fastener Ø: 5mm(3/16") M.W.L.: 160kg(350lbs) B. L.: 350kg(700lbs) Weight: 30g(1.1oz)

Series 50 All Purpose Block - Single - Universal Head All 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 service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10M(33') Materials: Nylatron® sheave Grade 316 stainless steel load strap and head fitting Impact and U.V. resistant, fiber reinforced Nylon cheeks Specifications: Sheave Ø: 50mm(2") Max. Rope Ø: 12mm(1/2") Max. Pin Ø: 5mm(3/16") M.W.L.: 750kg(1,650lbs) B. L.: 1,500kg(3,310lbs) Weight: 118g(4.1oz)

Series 25 Utility Block™ - Single - Swivel Shackle Head Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters, etc on larger boats Materials: U.V. stabilized acetal sheaves Grade 316 Stainless Steel cheeks Specifications: Sheave Ø: 25mm(1") Max. Rope Ø: 6mm(1/4") Pin Ø: 4mm(5/32") M.W.L.: 150kg(330lbs) B. L.: 300kg(660lbs) Weight: 20g(0.7oz)

Series 30 Fiddle Block - Narrow with Tube Rivet Head & V-Jam Cleat Features: Lightweight durable construction Economical Maintenance free Allows fast, sure cleating of control lines Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts Materials: U.V. Stabilized Acetal sheaves Grade 316 stainless steel cheeks Specifications: Sheave Ø:29mm(1-1/8") Max. Rope Ø:8mm(5/16") M.W.L.:300kg(660lbs) B. L.:600kg(1,320lbs) Weight:60g(2.1oz)

Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual Automatic Ratchet Block Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of 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 sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong. Awesome Ratchet Block Holding Power Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. Features: Up to 20:1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points. Automatic & manual ratchet block Applications: Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26') Halyard, vang and backstay applications on boats to 8M(26') Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks) Materials: Sheave: Hard anodised Aluminium Ball Bearings: High compression strength carbon black Aceetal Frame/Cheeks: Toughened, glass fiber reinforced Nylon Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema® Head fitting: grade 316 stainless steel Specifications: Sheave Ø: 55mm(2") Max. Rope Ø: 10mm(1/2") M.W.L.: 250kg(550lbs) B. L.: 650kg(1,430lbs) Weight: 82g(2.9oz)

Series 40 All Purpose Block - Triple - Swivel Head Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Spare parts - RF41010 Replacement Becket Pin, RF150 Shackle All 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 service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: U.V. stabilised Acetal sheaves Impact and U.V. resistant, fibre reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Sheave: UV stabilised acetal Cheeks: Impact modified, fiber reinforced and UV stabilized nylon