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Selden Backing Plates

Selden Backing Plates

The attachment for a running backstay or check stay is a backing plate with a securing strap. The strap ensures that the unloaded lee-ward stay does not disengage from the backing plate. A securing strap is included in the purchase of a back plate.

Part Number Description Mast Section Wire Dia.
in mm
SLD50755302 Backing Plate with Securing Strap Aluminum 0.11 3
SLD50755102 Backing Plate with Securing Strap Aluminum 0.15 4
SLD50755202 Backing Plate with Securing Strap Aluminum and Carbon 0.19 5




Selden Clevis Pins for Spreader Brackets

Selden Clevis Pins for Spreader Brackets

Part Number Description Mast Section Ø L Goes with Spreader Bracket Part # Split Ring/Pin Part #
Carbon Aluminum in mm in mm Carbon Aluminum Split Pin Split Ring
SLD165608 Inner Clevis Pin CC077 C080 0.18 4.75 0.55 14 SLD52220051 SLD52220001 -- SLD301527
SLD165105 Inner Clevis Pin CC086 C087 0.31 8 1.25 32 SLD52216901 SLD52219301
SLD52216951
-- SLD301528
SLD155049 Outer Clevis Pin CC077 C080 M5 bolt M5 bolt -- -- SLD52220051 SLD52220001 -- SLD301527
SLD158004 Outer Clevis Pin CC077 C080 M5 nut M5 nut -- -- SLD52220051 SLD52220001 -- SLD301527
SLD165105 Outer Clevis Pin CC086
CC095
C087
C096
0.31 8 1.25 32 SLD52216951 SLD52219301
SLD52216901
SLD52219301
SLD52217001
-- SLD301528
SLD165113 Outer Clevis Pin CC105
CC115
CC125
CC138
C106
C116
C126
C139
0.31 8 1.06 27 SLD52220051 SLD52217101
SLD52217201
SLD52217301
SLD52217401
SLD301049 --


SLD155049 Screw 19mm Price: $2.00 SLD158004 Nut for Mast Step Price: $0.25
SLD165608 Clevis Pin for NEW Spreaders Price: $3.00



Selden Fixed Boom Brackets

Seldén fixed boom brackets and toggles are manufactured from cast aluminium and come with tack attachment and, if required, reef hooks.

Seperate reef hooks and tack attachments are available for the boom brackets.

Boom Bracket Part# Boom Section Mast Section Aluminum Bracket Dim. Toggle Part # Fasteners, Aluminium Masts Part # Dimensions (mm
Toggle, Tack Attachment Al Toggle, Tack Attachment, Reef Hooks Al
SLD50873203 SLD50873205 B087 C080-C096 Height: 70/ Width: 62 SLD528094 SLD167018 8 pop rivets: (Ø 4.8 x 12.7)
SLD50873103 SLD50873105 B087 C106-C126 Height: 97/ Width: 47 SLD528094 SLD167018 8 pop rivets: (Ø 4.8 x 12.7)
SLD50878803 SLD50878805 B087 C106-C126 Height: 130/ Width: 55 SLD528109 SLD167018 10 pop rivets: (Ø 4.8 x 16.5)
SLD50873203 SLD50873205 B104 C080-C096 Height: 70/ Width: 62 SLD528094 SLD167018 8 pop rivets: (Ø 4.8 x 12.7)
SLD50873103 SLD50873105 B104 C106-C139 Height: 97/ Width: 47 SLD528094 SLD167018 8 pop rivets:(Ø 4.8 x 12.7)
SLD50873104 SLD50873106 B120 C106-C116 Height: 97/ Width: 47 SLD528094 SLD167018 8 pop rivets:(Ø 4.8 x 12.7)
SLD50878804 SLD50878806 B120 C126-C139* Height: 130/ Width: 55 SLD528108 SLD167018 10 pop rivets: (Ø 4.8 x 16.5)
*Max RM 10 kNm




Selden Forestay Attachments and Halyard Routing: Fractional Rig

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Selden Forestay Attachments and Halyard Routing: Fractional Rig

Selden offers three standard systems and a fourth triple combination system for the halyard attachments and routing.

System A: A halyard box with wear guard for spinnaker halyard, plain or ball bearing sheave.

System B: A halyard box for spinnaker halyard, plain or ball bearing sheave and a halyard lead.

System C: An upper halyard box for spinnaker halyard, plain bearing sheave, A lower halyard box for spinnaker halyard, ball or plain bearing sheave and a double halyard lead.

With a triple combi box the sheaves for the spinnaker halyard and the jib halyard are combined with the forestay attachment. This fourth system is available for mast section C106 - C139. The exits for the halyards are well rounded to prevent wear. The sheave for the spinnaker halyard is of larger diameter than the sheave for the jib halyard. This separates the halyards inside the mast and makes for smooth low friction operation. All boxes are made of a glass fiber reinforced polyamide composite. When used for a spinnaker halyard coming straight out of the box, Seldén supplies a stainless wear guard. This protects both the halyard and the box. Halyard boxes combined with Ø 3-5 mm forestays are available both with plain bearing sheaves as well as ball bearing sheaves.

The most common type of forestay attachments is a T-terminal in the top end of the wire and a backing plate in the mast. The backing plate is located inside the mast so the rig load is properly distributed on the mast section. The middle part of the fitting protrudes through the section forming the female part in the forestay attachment. The forestay has full articulation, which ensures correct alignment and provides a secure and low fatigue attachment.

System A:
Backing Plate Part # Halyard Box w/ Wear Guard for Spin Halyard Part # Forestay Dia Halyard Box for Jib Halyard Part #
Ball Bearing Plain Bearing in mm
SLD50755301 SLD50506116 SLD50506112 0.11 3 SLD50506103
SLD50755101 SLD50506116 SLD50506112 0.15 4 SLD50506103
SLD50755201 SLD50506116 SLD50506112 0.19 5 SLD50506103
SLD50756001 -- -- 0.23 6 SLD50507201
System B:
Backing Plate Part # Halyard Box for Spin Halyard Part # Forestay Dia Halyard Box for Jib Halyard Part # Halyard Lead Part #
Ball Bearing Plain Bearing in mm
SLD50755301 SLD50506110 SLD50506103 0.11 3 SLD50506103 SLD50815901
SLD50755301 SLD50506110 SLD50506103 0.15 4 SLD50506103 SLD50815901
SLD50755301 SLD50506110 SLD50506103 0.19 5 SLD50506103 SLD50815901
SLD50755301 -- SLD50507201 0.19 5 SLD50507201 SLD50815901
System C:
Backing Plate Part # Upper Halyard Box for Spin Halyard Part # Lower Halyard box for Spin Halyard Part # Double Halyard Lead Part # Forestay Dia Halyard Box for Jib Halyard Part #
Ball Bearing Plain Bearing in mm
SLD50755201 SLD50507201 SLD50506110 SLD50506103 SLD50873401 0.19 5 SLD50506103
SLD50755201 SLD50507201 -- SLD50506103 SLD50873401 0.23 6 SLD50507201
Triple-Combi Box:
Part # Spinnaker Halyard, Max. Dia Jib Halyard, Recommended Dia. Forestay Dia Halyard Lead for Furlex Part #
in mm in mm in mm
SLD50501101 0.39 10 0.31-0.39 8-10 0.15-0.19 4-5 SLD50815901




Selden Fork Toggles

Selden Fork Toggles

Selden Toggles can be used in multiple functions. Mainly the toggles are used with the Selden Fulrlex jib furling system.

Eye fork toggles can be used to lengthen a Furlex system. They fit underneath the standard fork/fork toggle or at the top of the Furlex wire.

T/fork toggles are needed to connect the Furlex to a Selden backing plate for T-terminals. A Stemball/eye toggle with fork/fork toggle is needed when fitting the Selden Furlex to another mast that is not of a Selden origin.

Part # Description Mast Section Wire Dia. Forestay Dia. Fork Width (W2) Length (H) Ø Eye (D1) Clevis Pin (D2)
in mm in mm in mm in mm in mm in mm
SLD17410201 Eye/fork toggle -- -- -- 0.15 4 0.31 8 0.98 25 0.31 8 0.31 8
SLD17410301 Eye/fork toggle -- -- -- 0.19 5 0.39 10 1.37 35 0.39 10 0.37 9.5
SLD51705602 Standard Furlex fork/fork toggle -- -- -- 0.15 4 0.29 7.5 0.98 25 0.31 8 0.31 8
SLD51705602 Standard Furlex fork/fork toggle -- -- -- 0.19 5 0.43 11 1.18 30 0.39 10 0.39 10
SLD17412701 T/fork toggle -- -- -- 0.15 4 0.31 8 2.36 60 -- -- 0.31 8
SLD17412801 T/fork toggle -- -- -- 0.19 5 0.39 10 2.36 70 -- -- 0.37 9.5
SLD51706501 Stemball/Eye toggle with fork/fork toggle -- -- -- 0.19 5 0.43 11 5.43 138 0.39 10 0.39 10




Selden Fractional Rig Accessories

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Selden Fractional Rig Accessories

Accessories for the fractional rig include a bracket for instruments and lights, a tricolor light that comes with screws, a tricolor light with screws and an anchor light. A bracket for the use of a Windex or VHF antenna and a backstay flicker which is used in freeing the roach. This is important because in recent years sailmakers have increasingly been designing mainsails with a bigger roach than the mast is designed for creating an over-dimensioned roach that can easily get caught in the backstay when tacking or gybing.

Part # Description Mast Section
Carbon Aluminum
SLD50830301 Bracket for instrument and lights CC077-CC138 C080-C139
SLD52602001 Tricolour light, incl. screws CC125-CC138 C126-C139
SLD52602101 Tricolour light, anchor light, incl. screws CC125-CC138 C126-C139
50833401* Bracket for Windex or VHF antenna CC125-CC138 C126-C139
SLD51112003 Backstay flicker (1200 x 20 mm) CC125-CC138 C126-C139
* cannot be combined with backstay flicker



Selden Halyard Leads, Halyard Boxes and Halyard Exits

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Selden Halyard Leads, Halyard Boxes and Halyard Exits

Halyard Boxes
Selden halyard boxes reduce friction and prolong's the life of rope. It makes for safe and fast sail setting and dousing, equally important for the cruising sailor as well as for the racing sailor. Offers quick and controlled sail handeling.

Seldén halyard boxes for halyards and spinnaker lift are designed to satisfy very high demands for functionality and strength while at the same time being lightweight.

Halyard Lead
The single halyard lead guides the halyard vertical into the halyard box. It prevents chafe on the halyard and on the halyard box. The location of the halyard lead determines the maximum spinnaker hoist. The Seldén halyard lead is U-shaped, hence it can be retrofitted without pulling out the halyard from the mast. The material is chromed bronze which is easy on wire halyards. Of course, the lead works well with rope halyards too.

Two halyard leads can be fitted side by side to handle two halyards. Selden also makes a double halyard lead fitting. The double halyard lead fitting consists of a stainless bracket with two integrated stainless rings. The bracket has the same radius as the front of the mast. The rings are well rounded and have flared entry/exit for minimum friction, promoting fast spinnaker handling. Halyard routing is particularly important when a jib furling system is fitted. It prevents the halyard wrapping around the luff extrusion when furling or unfurling the sail. A so called halyard-wrap can seriously damage the furling system, the forestay and the halyard.

Halyard Exits
Halyard exit is used to lead the halyard out of the mast and further down to a cleat or a block at deck level. The fitting prevents chafe between a halyard and the cut-out in the mast. The location of exits is a very important factor in smooth and effective halyard routing. They must be located with a certain distance from each other, not to weaken the mast and at the correct height for effective sail hoisting. Seldén has a standard set-up for halyard slots, but we will incorporate custom solutions to suit to a specific deck layout.

To prevent corrosion, all fittings made of bronze or stainless steel are insulated from the aluminium mast section. With carbon fiber masts the insulation protects the fittings from corrosion.

C139 C139
Part # Description Used for Weight Max Rope Dia. Safe Working Load (kN) Max. RM at 30°. kNm Forestay Dia Fasteners included
oz g in mm in mm
SLD50815901 Single halyard lead in chromed bronze Spinnaker, jib and genoaC126
2.36 67 0.47 12 -- -- -- 2 pop rivets: SLD167004 (Ø 6.4 x 12.7 mm) and insulating washer
SLD50815903 Single halyard lead in chromed bronze Spinnaker, jib and genoaC126
2.36 67 -- -- -- -- -- Ø 5.3 mm drill-bit, self tapping M6 skruv and insulating washer
SLD50873401 Double halyard lead in stainless steel Spinnaker 6.41 182 0.47 12 -- -- -- -- 4 pop rivets: SLD167004 (Ø 6.4 x 12.7 mm)
SLD50501701 Halyard exit in stainless steel Halyard, spinnaker lift 1.48 42 0.31 8 -- -- -- -- *1 pop rivet SLD167007 (Ø 4.8 x 9.9 mm)
SLD50506103 Composite box Ø 35 mm plain bearing sheave Spinnaker, jib and genoa 1.76 50 0.31 8 6 16.0 0.11-0.19 3-5 2 pop rivets: SLD167006 (Ø 4.8 x 16.5 mm)
SLD50506110 Composite box Ø 35 mm ball bearing sheave Spinnaker, jib and genoa 3.20 91 0.31 8 6 16.0 0.11-0.19 3-5 2 pop rivets: SLD167006 (Ø 4.8 x 16.5 mm)
SLD50506112 Composite box w/ chafe guard in stainless. Ø 35 mm plain bearing sheave Spinnaker halyard, spinnaker lift 2.99 85 0.31 8 6 16.0 0.11-0.19 3-5 2 pop rivets: SLD167006 (Ø 4.8 x 16.5 mm)
SLD50506116 Composite box w/ chafe guard in stainless. Ø 35 mm plain bearing sheave Spinnaker halyard, spinnaker lift 4.44 126 0.31 8 6 16.0 0.11-0.19 3-5 2 pop rivets: SLD167006 (Ø 4.8 x 16.5 mm)
SLD50507201 Composite box w/ Ø 45 mm plain bearing sheave Spinnaker, jib and genoa 3.31 94 0.47 12 8 -- 0.23/td> 6 2 pop rivets: SLD167004 (Ø 6.4 x 12.7 mm)
SLD50507902 Stainless box Ø 25 mm ball bearing sheave Spinnaker lift for Selden mast section C080- C087 1.58 45 0.19 5 1 -- --/td> -- 2 pop rivets: SLD167007 (Ø 4.8 x 9.9 mm)
SLD50509803 Stainless box Ø 35 mm ball bearing sheave Jib halyard 4.19 119 0.31 8 8 16 0.15-0.23 4-6 2 pop rivets: SLD167006 (Ø 4.8 x 16.5mm)
SLD50509806 Stainless box Ø 35 mm ball bearing sheave Jib halyard 5.60 159 0.31 8 8 16 0.15-0.23 4-6 2 pop rivets: SLD167006 (Ø 4.8 x 16.5mm)
SLD50847701 Stainless loop for attachment of block SLD40310101 External spinnaker lift, Selden mast section C080-C096 0.56 16 -- -- -- -- -- -- 3 pop rivets: SLD167018 (Ø 4.8 x 12.7 mm)
SLD50850201 Stainless loop for attachment of block SLD40410101 External spinnaker lift, Selden mast section C106-C139 1.23 35 -- -- -- -- -- -- 3 pop rivets: SLD167004 (Ø 6.4 x 12.7 mm)




Selden Main Sheet Sliders and Kicker Sliders

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Selden Main Sheet Sliders and Kicker Sliders

Main sheet sliders are fitted in the integral track in the underside of the boom.

Part # Description Boom Section A B C W
in mm in mm in mm in mm
SLD51164101 Main sheet slider B087-B104 2.36 60 0.74 19 -- -- -- --
SLD51157101 Main sheet slider B120 3.22 82 0.98 25 0.23 6 -- --
SLD51164301 Slider for kicking strap or Rodkicker B087-B104 2.75 70 0.74 19 0.15 4 -- --
SLD51180001 Slider for kicking strap or Rodkicker B120 5.51 140 0.98 25 0.23 6 0.35 9
SLD51163601 Slider locating reef lines* and lazy jacks B120 5.51 140 0.98 25 0.23 6 0.35 9
*The reef line shall be tied around the boom. The slider locates the reef line in the correct position, 100 mm aft from the vertical location of the reef cringle. This ensures that the correct angle is created and the sail will be flattened out.




Selden Reef Hooks / Tack Attachments for Boom Bracket

A tack attachment and reef hook is available for use on Selden boom brackets.



Selden Sail Entry and Sliders

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Selden Sail Entry and Sliders

Sail entry is a smooth stainless fitting that accepts both a bolt rope and slider. Combined with a prefeeder that's fitted to the boom and bracket, hoisting a sail with the bolt rope becomes really smooth. For sails with sliders, a spring loaded feeder is inserted in the luff groove. The feeder allows for the sliders to pass the a sail entry and all the way down to the boom bracket when the sail is reefed or doused. To select the correct size slider correspond the slider with the correct mast section.

Part Number Description Other Information
SLD50553401 Spring loaded feeder for sliders --
SLD50553801 Pre-feeder for luff rope --
SLD50553301 Sail entry --
SLD511601 Sail Slider Enlarge images for specification chart
SLD511602 Sail Slider Enlarge images for specification chart




Selden Vernier Spreader System

Selden Vernier Spreader System

Aluminium sections C080-C096 and carbon CC077-CC095 feature external stainless spreader brackets. These fittings feature a wide base to transfer spreader loads to the mast extrusion. This makes for a rigid connection, low windage and low weight.

With the clevis pin vernier adjuster system, the spreader angle can be set anywhere from 0° to 34°, with adjustment increments as small as 2°. This allows rapid and repeatable tuning to suit weather conditions.

Part # Description Mast Section Spreader length Additional Information End Plug
in mm
SLD52216801 Spreader bracket Aluminum: C080/ Carbon: CC077 -- -- Starboard and Port side. Spreader width: P-35mm, spreader angle: 0 – 34° --
SLD52216851 Spreader bracket Aluminum: C080/ Carbon: CC077 -- -- Starboard and Port side. Spreader width: P-35mm, spreader angle: 0 – 34° --
SLD50377011 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 11.22 285 Blue anodised SLD50080101
SLD50377111 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 13.18 335 Blue anodised SLD50080101
SLD50377211 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 14.76 375 Blue anodised SLD50080101
SLD50377311 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 17.12 435 Blue anodised SLD50080101
SLD50377411 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 19.09 485 Blue anodised SLD50080101
SLD50377511 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 21.06 535 Blue anodised SLD50080101
SLD50377711 Spreader pair excluding end plugs Aluminum: C080/ Carbon: CC077 23.03 585 Blue anodised SLD50080101




Selden Vernier Spreader System: Fixed Angle Spreader

Selden Vernier Spreader System: Fixed Angle Spreader

These Spreaders are for Keelboats and the sweep angle is fixed- meaning it's not adjustable. Aluminium sections C087–C096 and carbon CC086–CC095 are a larger and stronger version of the vernier adjust type but with fixed angle spreaders. This is often required to comply with individual class rules. Spreaders are custom made to give the correct sweep.

With the clevis pin vernier adjuster system, the spreader angle can be set anywhere from 0° to 34°, with adjustment increments as small as 2°. This allows rapid and repeatable tuning to suit weather conditions.

Part # Description Mast Section Additional Information
SLD52219301 Complete Spreader Bracket Aluminum: C087-C096/ Carbon: CC086-CC095 Starboard and Port side. Spreader width: P-50mm
SLD52216901 Complete Spreader Bracket Aluminum: C087 Starboard and Port side. Spreader width: P-50mm
SLD52216951 Spreader pair excluding end plugs Carbon: CC086 Starboard and Port side. Spreader width: P-50mm
SLD52217001 Spreader pair excluding end plugs Aluminum: C096/ Carbon: CC095 Starboard and Port side. Spreader width: P-50mm


Silver Anodised Part # Black Anodised Part # Description Spreader Length Additional Information End Plug
in mm
SLD50373001 SLD50361001 Spreaders excluding end plug 250 9.84 Fixed Angle: 0° - 19°, 0° - 15° SLD50054501
SLD50373101 SLD50361101 Spreaders excluding end plug 300 11.81 Fixed Angle: 20° - 30° SLD50054501
SLD50373201 SLD50361201 Spreaders excluding end plug 350 13.77 Fixed Angle: 16° - 30° SLD50054501
SLD50373301 SLD50361301 Spreaders excluding end plug 400 15.74 Fixed Angle: 16° - 30° SLD50054501
SLD50373401 SLD50361401 Spreaders excluding end plug 450 17.71 Fixed Angle: 16° - 30° SLD50054501
SLD50373501 SLD50361501 Spreaders excluding end plug 500 19.68 Fixed Angle: 16° - 30° SLD50054501
SLD50373601 SLD50361601 Spreaders excluding end plug 550 21.65 Fixed Angle: 16° - 30° SLD50054501
SLD50373701 SLD50361701 Spreaders excluding end plug 600 23.62 Fixed Angle: 16° - 30° SLD50054501
SLD50373801 SLD50361801 Spreaders excluding end plug 650 25.59 Fixed Angle: 16° - 30° SLD50054501
SLD50373901 SLD50361901 Spreaders excluding end plug 700 27.55 Fixed Angle: 16° - 30° SLD50054501
SLD50374001 SLD50362001 Spreaders excluding end plug 750 29.52 Fixed Angle: 16° - 30° SLD50054501
SLD50374101 SLD50362101 Spreaders excluding end plug 800 31.49 Fixed Angle: 16° - 30° SLD50054501
SLD50374201 SLD50362201 Spreaders excluding end plug 850 33.46 Fixed Angle: 16° - 30° SLD50054501
SLD50374301 SLD50362301 Spreaders excluding end plug 900 35.43 Fixed Angle: 16° - 30° SLD50054501
SLD50374401 SLD50362401 Spreaders excluding end plug 950 37.40 Fixed Angle: 16° - 30° SLD50054501
SLD50374501 SLD50362501 Spreaders excluding end plug 1000 39.37 Fixed Angle: 16° - 30° SLD50054501
SLD50374601 SLD50362601 Spreaders excluding end plug 1050 41.33 Fixed Angle: 16° - 30° SLD50054501
SLD50374701 SLD50362701 Spreaders excluding end plug 1100 43.30 Fixed Angle: 16° - 30° SLD50054501
SLD50374801 SLD50362801 Spreaders excluding end plug 1150 45.27 Fixed Angle: 16° - 30° SLD50054501
SLD50374801 SLD50362801 Spreaders excluding end plug 1150 45.27 Fixed Angle: 16° - 30° SLD50054501
SLD50374901 SLD50362901 Spreaders excluding end plug 1200 47.24 Fixed Angle: 16° - 30° SLD50054501



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Annapolis Performance Sailing
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Annapolis, MD 21403
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