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SELECTION GUIDE

Choose a Selden CXr ratchet furler (CXr15, CXr25, CXr45) for Code 0, Jib 0, staysail or top-down gennaker: basic kits, tack swivels, technical data, nail terminals, boards, AT-cables, lines and halyard parts.

DocumentSelden CXr Selection Guide
FormatPDF · 16 pages · 3.8 MB
LanguageEnglish
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Which SailsSelect the ModelRatchetTerminals & SwivelsAT-Cable & LineCode 0 HalyardAccessoriesProducts
Selden CXr — Selection Guide

Sails the CXr Furls

Sail Set-up
Code 0 Straight luff under tension, mid girth <75% of foot. AT-cable in the luff is the "axle" between drum and halyard swivel; furls bottom-up. Best at apparent wind angles between 40° and 90°.
Cableless Code 0 Special load-bearing luff instead of an AT-cable; Selden supplies tackboards and headboards to fit the CXr unit and halyard swivel.
Jib 0 Light-wind alternative to a jib; good upwind performance in winds up to approximately 6 knots, used from close-hauled until you can switch to a gennaker or spinnaker.
Asymmetric spinnaker Mid girth >75% of foot, luff at least 2% longer than the leech. Furled top-down with a Tack Swivel Adaptor; the AT-cable carries the drum rotation to the head. Apparent wind angles between 90° and 120°; tighten the halyard somewhat before furling and unfurling.
Staysail Set inside a gennaker, spinnaker, Code 0 or Jib 0. Also steadies the boat downwind in heavy winds when tightly sheeted.

Select the Right Model

For Code 0, Jib 0 and staysails use a Basic Kit. For asymmetric spinnakers add a Tack Swivel Adaptor to the Basic Kit. CXr basic kits and tack swivel adaptors come with a 5-year warranty.

Model Basic kit (furling unit & halyard swivel) Tack swivel: for nail terminal / adaptor fork-eye Max service load (kN) Max sail area (m²) Max RM at 30° heel (kNm) Max approx. displacement (t)
CXr15 546-100-10 View kit → 546-120-01 / 546-126-10 15 80 45 7,7
CXr25 546-200-10 View kit → 546-220-01 / 546-226-10 25 115 90 14
CXr45 546-400-10 View kit → 546-420-01 / 546-426-10 45 200 200 28

This table prints the nail-terminal tack swivels as 546-120-01 / 546-220-01 / 546-420-01; the tack swivel table on the previous page of the PDF lists them as 546-120-10 / 546-220-10 / 546-420-10 (as printed).

Technical specification

Model AT-cable Ø (mm) Drum Ø (mm) Pin Ø (mm) Furling line Ø (mm)
CXr15 11 159 10 8
CXr25 13 172 12 10
CXr45 15 223 16 12

The CXr Ratchet

The ratcheting drum stops the sail unfurling unintentionally while hoisting and lets you pause midway while furling a large top-down sail. It works in both directions and adapts to the direction you pull.

  1. Before unfurling, unlock the ratchet with a short, distinct pull on the furling line in the direction you want the drum to spin.
  2. Looking at the drum head-on from aft: to spin it clockwise, pull the line from the starboard side; to spin it counterclockwise, pull from the port side.
  • Furling unit: composite for low weight, metal "teeth" on the line driver, polished cast stainless line guide, wedge to separate the line, fork with spring-loaded lock and captive pin for thimble, tack swivel adapter or nail terminal; Duplex steel and machined aluminium structure; sealed steel bearings.
  • Halyard swivel: same spring-loaded lock and captive pin, sealed steel bearing, integrated rubber fender.

Ratchet prevention plugs

Install them in the furling unit to inactivate the ratchet, for example on a race-boat staysail that is used intermittently and hoisted rapidly.

Art. No. Model
546-121-01R CXr15 Ask us to source it →
546-221-01R CXr25 Ask us to source it →
546-421-01R CXr45 Ask us to source it →

Nail Terminals and Tack Swivels

Machined anodized aluminium terminal; the AT-cable goes into the female fitting and hardened stainless nails are driven through terminal and cable (vise or hammer). The nails leave the Dyneema® fibres undamaged, so load capacity and torsional rigidity are kept.

Art. No. Model For AT-cable Ø (mm) Used for
301-305-01 NT-11 11 CXr15 View terminal →
301-306-01 NT-13 13 CXr25 View terminal →
301-307-01 NT-15 15 CXr45 View terminal →

The Tack Swivel converts a CXr into a top-down furler: machined aluminium body, stainless tack ring on Torlon® ball bearings, Dyneema lashing for the sail tack.

Art. No. Tack swivel To be used for
546-120-10 For Nail Terminal (slide on, secure with one screw) CXr15 View swivel →
546-220-10 For Nail Terminal (slide on, secure with one screw) CXr25 View swivel →
546-420-10 For Nail Terminal (slide on, secure with one screw) CXr45 View swivel →
546-126-10 Adaptor Fork/Eye, for thimble, Nail terminal or tackboard CXr15 View swivel →
546-226-10 Adaptor Fork/Eye, for thimble, Nail terminal or tackboard CXr25 View swivel →
546-426-10 Adaptor Fork/Eye, for thimble, Nail terminal or tackboard CXr45 View swivel →

Tackboard and headboard for cableless Code sails

Model Headboard Art. No. Tackboard Art. No.
CXr15 546-151R View → 546-150R View →
CXr25 546-251R View → 546-250R View →
CXr45 546-451R View → 546-450R View →

AT-Cables and Endless Furling Line

Art. No. Length (mm) Ø (mm) Previous models Current model
613-020-01 13000 9 CX10, GX7,5, CX10 + GX7,5 adapter – View cable →
613-020-02 16000 9 CX10, GX7,5, CX10 + GX7,5 adapter – View cable →
613-020-03 19000 9 CX10, GX7,5, CX10 + GX7,5 adapter – View cable →
613-021-01 13000 11 GX10, CX15, CX15 + GX10 adapter CXr15 View cable →
613-021-02 16000 11 GX10, CX15, CX15 + GX10 adapter CXr15 View cable →
613-021-03 19000 11 GX10, CX15, CX15 + GX10 adapter CXr15 View cable →
613-021-04 22000 11 GX10, CX15, CX15 + GX10 adapter CXr15 View cable →
613-022-01 16000 13 GX15, CX25, CX25 + GX15 adapter CXr25 View cable →
613-022-02 19000 13 GX15, CX25, CX25 + GX15 adapter CXr25 View cable →
613-022-03 22000 13 GX15, CX25, CX25 + GX15 adapter CXr25 View cable →
613-022-04 25000 13 GX15, CX25, CX25 + GX15 adapter CXr25 View cable →
613-022-05 28000 13 GX15, CX25, CX25 + GX15 adapter CXr25 View cable →
613-023-01 19000 15 CX45, GX25, CX45 + GX25 adapter CXr45 View cable →
613-023-02 22000 15 CX45, GX25, CX45 + GX25 adapter CXr45 View cable →
613-023-03 25000 15 CX45, GX25, CX45 + GX25 adapter CXr45 View cable →
613-023-04 28000 15 CX45, GX25, CX45 + GX25 adapter CXr45 View cable →
Line only, Art. No. With twin-cam block installed, Art. No. Length (mm) Ø (mm) Previous models Current model
611-007-06 View line → 611-007-31 View kit → 2 × 4000 8 CX10, CX15, GX7,5, GX10 CXr15
611-007-07 View line → 611-007-32 View kit → 2 × 8000 8 CX10, CX15, GX7,5, GX10 CXr15
611-007-09 View line → 611-007-33 View kit → 2 × 10000 8 CX10, CX15, GX7,5, GX10 CXr15
611-007-08 View line → 611-007-34 View kit → 2 × 12000 8 CX10, CX15, GX7,5, GX10 CXr15
611-011-05 View line → 611-011-31 View kit → 2 × 5000 10 CX25, GX15 CXr25
611-011-06 View line → 611-011-32 View kit → 2 × 7000 10 CX25, GX15 CXr25
611-011-07 View line → 611-011-33 View kit → 2 × 9000 10 CX25, GX15 CXr25
611-011-18 View line → 611-011-34 View kit → 2 × 12000 10 CX25, GX15 CXr25
611-011-19 View line → 611-011-35 View kit → 2 × 15000 10 CX25, GX15 CXr25
611-015-06 View line → 611-015-31 View kit → 2 × 5000 12 CX45, GX25 CXr45
611-015-07 View line → 611-015-32 View kit → 2 × 9000 12 CX45, GX25 CXr45
611-015-08 View line → 611-015-33 View kit → 2 × 12000 12 CX45, GX25 CXr45
611-015-09 View line → 611-015-34 View kit → 2 × 17000 12 CX45, GX25 CXr45
Art. No. Item
480-501-01R Double fairlead (25 mm or 30 mm stanchion) View part →
405-001-40R Twin-cam block PBB50 (max Ø10 mm line) View part →
406-001-40R Twin-cam block PBB60 (Ø12 mm line) View part →
405-001-41R Single-cam block PBB50 (max ø10 mm line) View part →
406-001-41R Single-cam block PBB60 (ø12 mm line) View part →

Code 0 Halyard with 2:1 Purchase

To reach the luff tension a Code 0 needs, the halyard load must be higher than normal halyard boxes and stoppers can handle. Arrange a 2:1 purchase: fix the dead end of the halyard in the mast and run it through a block attached to the halyard swivel. The position on the mast must be specified by Selden; in most cases Code 0 sails are hoisted lower than gennakers and spinnakers.

Art. No. Dim. Weight (g) L1 L2 W D Safe working load (kg) Breaking load (kg) Max line size (mm) To be used for
403-501-01R 30 100 68 21 13 8 1500 3000 10 CX15, CXr 15 View block →
404-501-01R 40 187 85 26 18 10 2500 5000 12 CX25, GX25, CXr25 View block →
405-501-01R 50 335 104 31 24 12 4000 8000 16 CX45, CXr 45 View block →

Dead end fitting

Art. No. Mast section Max rope Ø (mm) Max RM at 30° heel (kNm)
508-843-01R E177, E206, C137, C153, C156, C175, C180, C192, C193, C208, C211, C227, F170, F176, F185, F194, F199, F212, F217, F228 12 45 View fitting →
508-844-01R E206, C225, C242, C245, C261, C264, C285, F246, F252, F265, F272, F286, F291, F305 14 180 View fitting →
508-838-01R C280, C321, C365, F324, F370, F406 16 350 View fitting →

Tack Swivel, Shackles and Masthead Bracket

Adjustable Tack Swivel Art. No. AT-cable Ø (mm)
545-040-10 9 View part →
545-140-10 11 View part →
545-240-10 13 View part →
545-440-10 15 View part →

The split sliding sleeve allows retrofit over an existing Nail terminal.

Low friction shackle Art. No. Dimension Weight (g) Safe working load (kg) Breaking load (kg) To be used for
307-435-01R 50 70 900 1800 CX10, GX7,5, GX10 View shackle →
307-436-01R 60 118 1500 3000 CX15, GX15, CXr15 View shackle →
307-437-01R 80 278 2500 5000 CX25, GX25, CXr25 View shackle →
307-438-01R 100 540 4000 8000 CX45, CXr 45 View shackle →
Anti-Twist shackle Art. No. Dimension To be used for
545-030-01R M6, L = 220 mm CX10, GX7.5, GX10 View shackle →
545-130-01R M8, L = 220 mm CX15, GX15, CXr15 View shackle →
545-230-01R M10, L = 280 mm CX25, GX25, CXr25 View shackle →
545-430-01R M12, L = 390 mm CX45, CXr45 View shackle →
Art. No. Item
508-060-01R Bracket for top-down furler on masthead rig (gennakers only, not Code 0; max RM at 30° heel 35 kNm) View bracket →

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide