Harken 2633 57mm Single Carbo Airblock Ratchamatic Cheek Block
HARKEN 2633
Cheek Block - Carbo Ratchamatic® - 57mm
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 Carbo Ratchamatic® cheek block mounts on either port or starboard.
Use for:
Includes RH fasteners & mounting pad
Cheek Block - Carbo Ratchamatic® - 57mm
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 Carbo Ratchamatic® cheek block mounts on either port or starboard.
Use for:
- Main / jib sheets
- Asymmetric spinnakers
Includes RH fasteners & mounting pad
| Mfg No. | Sheave Diameter |
Length | Max Line Diameter |
Max Working Load |
Breaking Load |
Holding Power* |
Weight |
| 2633 | 2-1/4" (57mm) |
3-1/4" (83mm) |
3/8" (10mm) |
500 Lbs (227kg) |
2,000 Lbs (907kg) |
10:1 | 3.1 oz. (89g) |
Harken 2633 57mm Single Carbo Airblock Ratchamatic Cheek Block
Sale price$119.95
Regular price$135.85
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Harken 2633 57mm Single Carbo Airblock Ratchamatic Cheek Block
Sale price$119.95
Regular price$135.85