Series 30 Fiddle Block - Narrow with Tube Rivet Head Features: Lightweight durable construction Economical Maintenance free 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:50g(1.8oz)

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 30 Utility Block- Cheek, Curved Base Features: Lightweight durable construction Economical Maintenance free Product Information: 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

Series 30 Utility Block- Double, Loop Top Features: Lightweight durable construction Economical Maintenance free Product Information: 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

Series 30 Utility Block - Triple, Loop Top Features: Lightweight durable construction Economical Maintenance free Product Information: 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

Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head Features: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible. Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block. Highest Working Load In It's Class The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. Applications: Mainsheet systems on spinnaker sheet on dinghies to 5m (16ft) Spinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft) Halyard, vang and backstay applications on boats to 8m (26ft) Control line applications on larger yachts Materials: Ball Bearings - High compression strength carbon black Acetal. Stage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon Frame/Cheeks - Toughened, glass fibre reinforced Nylon Sheave - Carbon fiber reinforced, PTFE impregnated Nylon

Series 30 Ball Bearing Orbit Block™ - Single - Becket - Swivel Shackle Head Ball 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 while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets. Features: Lightweight Highest working load in its class Secure, versatile and secure attachement Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range Applications: Mainsheet systems and spinnaker sheets on dinghies to 5M(16') Halyard, vang and backstay applications on boats to 5M(16') Control line applications on larger yachts Materials: Sheave: High compression strength carbon black Acetal Ball Bearings: High compression strength Acetal Frame/Cheeks: Toughened, glass fiber reinforced Nylon Link: UV stabilized, multi-strand impregnated SK75 Dyneema® Specifications: Sheave Ø: 30mm(1-3/16") Max. Rope Ø: 8mm(5/16") M.W.L.: 300kg(660lbs) B. L.: 600kg(1,320lbs) Weight: 32g(1.1oz)

Series 30 Utility Ball Bearing Block - Single, Becket, Swivel Shackle Head Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Cheek cut-outs for easy bearing maintenance Product Information: 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. Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fittings

Series 45 Core Block™ - Single - Swivel Shackle Head Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing Dynamic and high static load performance The Ronstan Universal Bearing incorporates our proven 2-stage bearing system Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks. Alloy Cheek Plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear. Features: High dynamic and static load capacity Efficient 2-stage bearing system Ball bearings to counteract side thrust loads Class leading performance and sleek, contemporary styling Durable aluminium alloy cheek plates Central hub hole can be used as a becket take-off or tie-up point Applications: Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 10M (33') Various control line applications on larger yachts Alloy sheave models are available for use with wire Materials: Sheave: U.V. stabilized Acetal Cheek body: Aluminium Alloy Ball Bearings: High compression strength carbon black Acetal Shackle, head post & hub: Grade 316 stainless steel Specifications: Sheave Ø: 45mm(1-3/4") Max. Rope Ø: 12mm(1/2") Pin Ø: 5mm(3/16") M.W.L.: 700kg(1,540lbs) B. L.: 1,400kg(3,090lbs) Weight: 104g(3.6oz)

Series 60 Core Block™ - Single Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing Dynamic and high static load performance The Ronstan Universal Bearing incorporates our proven 2-stage bearing system Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks. Alloy Cheek Plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear. Universal head The head assembly incorporates a brass bearing washer to provide smooth 360™ rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0™ or 90™. Shackles are high quality forged grade 316 stainless steel. Features: Class leading performance and sleek, contemporary styling Excellent dynamic and high static load performance Less than half the friction of the nearest competitor Universal head with full 3-axis articulation Head posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex/Allen Key Central hub hole can be used as a becket take-off or tie-up point Applications: Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 12M (40') Various control line applications on larger yachts Materials: Sheave: U.V. stabilized Acetal Cheek body: Aluminium Alloy Ball Bearings: High compression strength carbon black Acetal Shackle, head post & hub: Grade 316 stainless steel Specifications: Sheave Ø: 60mm(2-3/8") Max. Rope Ø: 12mm(1/2") Pin Ø: 6mm(1/4") M.W.L.: 1,000kg(2,200lbs) B. L.: 2,000kg(4,410lbs) Weight: 235g(8.3oz)

Series 75 Core Block™ - Single Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing Dynamic and high static load performance The Ronstan Universal Bearing incorporates our proven 2-stage bearing system Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks. Alloy Cheek Plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear. Universal head The head assembly incorporates a brass bearing washer to provide smooth 360™ rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0™ or 90™. Shackles are high quality forged grade 316 stainless steel. Features: Class leading performance and sleek, contemporary styling Excellent dynamic and high static load performance Less than half the friction of the nearest competitor Universal head with full 3-axis articulation Head posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex/Allen Key Central hub hole can be used as a becket take-off or tie-up point Applications: Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 14M (46') Various control line applications on larger yachts Materials: Sheave: U.V. stabilized Acetal Cheek body: Aluminium Alloy Ball Bearings: High compression strength carbon black Acetal Shackle, head post & hub: Grade 316 stainless steel Specifications: Sheave Ø: 75mm(3") Max. Rope Ø: 14mm(9/16") Pin Ø: 8mm(5/16") M.W.L.: 1,500kg(3,300lbs) B. L.: 3,000kg(6,600lbs) Weight: 354g(12.5oz)

Series 75 Core Block™ - Single - Aluminum Rope/Wire Sheave Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing Dynamic and high static load performance The Ronstan Universal Bearing incorporates our proven 2-stage bearing system Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks. Alloy Cheek Plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear. Universal head The head assembly incorporates a brass bearing washer to provide smooth 360™ rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0™ or 90™. Shackles are high quality forged grade 316 stainless steel. Features: Class leading performance and sleek, contemporary styling Excellent dynamic and high static load performance Less than half the friction of the nearest competitor Universal head with full 3-axis articulation Head posts can be locked at 0 or 90 degrees, by using a 2.5mm Hex/Allen Key Central hub hole can be used as a becket take-off or tie-up point Durable alloy Rope/Wire sheave Applications: Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 14M (46') Various control line applications on larger yachts Aluminium sheave which has a deep groove profile specifically made for use with wire Materials: Sheave: U.V. stabilized Acetal Cheek body: Aluminium Alloy Ball Bearings: High compression strength carbon black Acetal Shackle, head post & hub: Grade 316 stainless steel Specifications: Sheave Ø: 75mm(3") Max. Rope Ø: 14mm(9/16") Max. Cable Ø: 8mm(5/16") Pin Ø: 8mm(5/16") M.W.L.: 1,500kg(3,300lbs) B. L.: 3,000kg(6,600lbs) Weight: 432g(15.3oz)

Series 45 Core Block - Single/Swivel Haylard Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing Dynamic and high static load performance The Ronstan Universal Bearing incorporates our proven 2-stage bearing system Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect. Particularly important for cheek blocks Alloy Cheek Plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimization and the cut-away design minimizes weight and allows easy fresh water rinsing of salt and debris from the bearings.  Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimizing rope wear. Features: High dynamic and static load capacity Efficient 2-stage bearing system Ball bearings to counteract side thrust loads Class leading performance and sleek, contemporary styling Durable aluminium alloy cheek plates Central hub hole can be used as a becket take-off or tie-up point Incorporates a low profile swivel head fork Features a removable screw pin for attachment to padeyes Suitable for 12mm (1/2") diam. mast collar post Applications: Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 10M (33') Various control line applications on larger yachts Alloy sheave models are available for use with wire Materials: Sheave: U.V. stabilised Acetal Cheek body: Aluminium Alloy Ball Bearings: High compression strength carbon black Acetal Shackle, head post & hub: Grade 316 stainless steel

Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Product Information: 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.Can be fitted with a shackle in either of two planes to allow correct alignment of the block. Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fittings

Series 30 Utility Ball Bearing Block - Stand-up, Loop Top Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Priduct Information: 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. Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fittings