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The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes.
Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style. The Ratchamatic® cheek block mounts on either port or starboard.
For the ultimate system, mount a Ratchamatic® on the boom above a cockpit-mounted switchable ratchet to allow the mainsheet to run freely in light air and to double holding power in heavy air.
Use for:
Main/Jib Sheets
Asymmetric spinnakers
Use the 2634 with a 402 or 403 swivel arm for a versatile two-speed mainsheet system.
Specifications:
Sheave Ø (mm) - 57 mm
Length (mm) - 116 mm
Weight (g) - 204 g
Shackle pin Ø (mm) - 6 mm
Maximum line Ø (mm) - 10 mm
Maximum working load (kg) - 340 kg
Breaking load (kg) - 851 kg
Holding power w/180 degree wrap 50 lb (23 kg) - 10:1