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RF62175 – Ronstan Series 60 Ultimate Ratchet Pivoting Low Lead Block, Cleat

$434.79 incl GST



  • Unrivalled 20:1 holding power
  • Dual sided On-Off switch
  • Ability to operate On/Off switch under load
  • Low friction ball bearing system
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance

The patented extruded hole design, in conjunction with the groove profile of the sheave, provides a more powerful grip than conventional designs – up to 20:1 holding power. Unrivalled low weight is achieved by the use of a Torlon® ratchet pawl, high grade machined alloy sheave and black Acetal hubs and bearings. On-Off switching knob is fitted to both sides of the swivel blocks (one can be removed if desired). Ratchet blocks can be disassembled for sheave replacement with RF62000.


  • Mainsheet on powerful dinghies and skiffs
  • Series 60 mainsheet systems on sportsboats using RF7 mainsheet swivel units
  • Control line applications on larger yachts
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)


Product NoSheave Dia mm (in)Max Rope Dia mm (in)Max Working Load kg (lb)Break Load kg (lb)Weight g (oz)Pin Dia mm (in)Fasteners mm (in)
RF6210060 (2 3/8)10 (3/8)250 (550)1370 (3020)150 (5.3)5 (3/16)-
RF6217460 (2 3/8)10 (3/8)250 (550)1370 (3020)147 (5.2)-5 (3/16)
RF6217560 (2 3/8)10 (3/8)250 (550)1370 (3020)285 (10.1)-5 (3/16)

Additional information

Weight .285 kg