26
2610
2608 
2135
2670
2178
2609
2136
2671
2614
2137
2672
2138
2611     
2139
2135.RED
 
 
 
 
 
 
 
 
 
 2178 
Ratchet Blocks
Carbo ratchet blocks allow sailors to hand-hold 
loaded lines and offer balance between holding 
power and controlled easing.
Nylon-resin sideplates are densely packed 
with long-glass fibers for a compact block 
with a high strength-to-weight ratio. Machined 
aluminum sheaves are Hard Lube-anodized for 
strength and corrosion resistance. Eight facets 
hold line securely. Ball bearings, sheave, and 
sideplates are UV-stabilized with carbon black 
for maximum protection.
40 mm 
The 40 mm ratchets are ideal for jib sheets and 
spinnakers where size and weight are critical. The 
2608, 2609, and 2614 have on/off switches; other 
40 mm ratchets are always in ratchet mode.
57 mm and 75 mm 
The 57 mm and 75 mm switchable ratchets provide 
precise control with an accessible on/off switch that 
is easy to operate from both sides of the block. 
For the ultimate system, mount a switchable 
ratchet in the cockpit and a boom-mounted 
Ratchamatic block directly above for double 
holding power in heavy air and a free-running 
mainsheet when it’s light. The 75 mm provides 
up to 15:1 holding power; the 57 mm 10:1.
About Carbo Air blocks: see feature page 
at beginning of this section.
On/off switch operates from both sides.
*Includes RH fasteners and mounting pad.    **Maximum working loads and breaking loads for blocks based on cam strengths.
Switch locks shackle in front or side 
positions, or lets block swivel to keep 
line from twisting.
Part
No.
Description
Sheave
Ø
Length
Weight
Shackle pin
Ø
Max line
Ø
Maximum
working load
Breaking
load
in
mm
in
mm
oz
g
in
mm
in
mm
lb
kg
lb
kg
 40 mm 
 2608 
 Single/swivel 
 1 9/16 
 40 
 3 3/8 
 86 
 1.7 
 49 
 5/32 
 4 
 3/8 
 10 
 300 
 136 
 1000 
 454 
 2609 
 Single/swivel/becket 
 1 9/16 
 40 
 4 
 102 
 1.8 
 52 
 5/32 
 4 
 3/8 
 10 
 300 
 136 
 1000 
 454 
 2610 
 Single/swivel/471 Carbo-Cam** 
 1 9/16 
 40 
 3 3/8 
 86 
 4.6 
 129 
 5/32 
 4 
 1/4 
 6 
 150 
 68 
 300 
 136 
 2611 
 Single/swivel/471 Carbo-Cam/becket** 
 1 9/16 
 40 
 4 
 102 
 4.7 
 132 
 5/32 
 4 
 1/4 
 6 
 300 
 136 
 600 
 272 
 2614  
 Cheek* 
 1 9/16 
 40 
 2 3/4 
 70 
 1.6 
 44 
 
 
 3/8 
 10 
 300 
 136 
 1000 
 454 
 57 mm 
 2135 / .RED  Single/swivel 
 2 1/4 
 57 
 4 1/16 
 103 
 3 
 85 
 3/16 
 5 
 3/8 
 10 
 500 
 227 
 2000 
 907 
 2136 
 Single/swivel/becket 
 2 1/4 
 57 
 4 15/16 
 125 
 3.3 
 94 
 3/16 
 5 
 3/8 
 10 
 500 
 227 
 2000 
 907 
 2137 
 Cheek* 
 2 1/4 
 57 
 3 1/4 
 83 
 2.5 
 71 
 
 
 3/8 
 10 
 500 
 227 
 2000 
 907 
 2138 
 Single/swivel/150 Cam-Matic** 
 2 1/4 
 57 
 4 1/16 
 103 
 8.7 
 247 
 3/16 
 5 
 3/8 
 10 
 300 
 136 
 750 
 340 
 2139 
 Single/swivel/150 Cam-Matic/becket** 
 2 1/4 
 57 
 4 15/16 
 125 
 9 
 255 
 3/16 
 5 
 3/8 
 10 
 600 
 272 
 1500 
 680 
 
 Double/swivel 
 2 1/4 
 57 
 4 9/16 
 116 
 6.9 
 195 
 1/4 
 6 
 3/8 
 10 
 750 
 340 
 1875 
 851 
 75 mm 
 2670 
 Single/swivel 
 2 15/16 
 75 
 5 3/8 
 137 
 8 
 227 
 1/4 
 6 
 7/16 
 12 
 750 
 341 
 3000 
 1361 
 2671 
 Single/swivel/becket 
 2 15/16 
 75 
 6 1/2 
 165 
 8.75 
 248 
 1/4 
 6 
 7/16 
 12 
 750 
 341 
 3000 
 1361 
 2672 
 Cheek* 
 2 15/16 
 75 
 4 1/16 
 103 
 6.3 
 179 
 
 
 7/16 
 12 
 750 
 341 
 3000 
 1361 
Ratchet or 
Ratchamatic?
All 57 mm and 75 mm ratchet blocks 
are also available with Power3 
sheaves which offer holding power 
options suitable for a variety of wind 
conditions.

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