30
2656
2622
2691
2657
2623
2692
2655
2621
2690
2674
2695
2675
2696
2673
2694
2676
2697
2658
2624
2693
 
Carbo Fiddle Blocks
The Carbo fiddle block line features high-load 
ball bearings with fitted races for low-friction 
operation. The 40 mm fiddle is an excellent 
choice for 3:1 and 4:1 tackles on dinghy vangs 
and mainsheets, as well as for controls such 
as cunninghams and internal boom outhauls 
on larger boats.
The 57 mm fiddle features the Cam-Lock locking
system. The switch allows the shackle to lock
at 90-degree intervals or to swivel freely.
Ratchet Blocks
The 57 and 75 mm switchable ratchet blocks 
provide precise on/off control with accessible,
easy-to-operate on/off switches on both 
sides of the block.
About Carbo Air blocks: see feature page at beginning of this section.
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 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2655 
 40 mm 
 1 9/16 
 40 
 4 1/2 
 115 
 1.8 
 51 
 5/32 
 4 
 3/8 
 10 
 485 
 220 
 1620 
 735 
 2656 
 40 mm/becket 
 1 9/16 
 40 
 5 1/8 
 131 
 1.9 
 54 
 5/32 
 4 
 3/8 
 10 
 485 
 220 
 1620 
 735 
 2657 
 40 mm/471 Carbo-Cam *
 1 9/16 
 40 
 4 1/2 
 115 
 4.4 
 125 
 5/32 
 4 
 1/4 
 6 
 450 
 204 
 1500 
 680 
 2658 
 40 mm/471 Carbo-Cam/becket 
 1 9/16 
 40 
 5 1/8 
 131 
 4.5 
 128 
 5/32 
 4 
 1/4 
 6 
 485 
 220 
 1620 
 735 
   57 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2621 
 57 mm 
 2 1/4 
 57 
 6 
 153 
 3.7 
 105 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2622 
 57 mm/becket 
 2 1/4 
 57 
 6 7/8 
 175 
 4 
 113 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2623 
 57 mm/150 Cam-Matic 
 2 1/4 
 57 
 6 
 153 
 10.1 
 286 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2624 
 57 mm/150 Cam-Matic/becket 
 2 1/4 
 57 
 6 7/8 
 175 
 10.4 
 295 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2673 
 57 mm/ratchet 
 2 1/4 
 57 
 4 5/8 
 118 
 4 
 113 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2674 
 57 mm/ratchet/becket 
 2 1/4 
 57 
 5 5/8 
 143 
 4.3 
 121 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2675 
 57 mm/ratchet/150 Cam-Matic 
 2 1/4 
 57 
 4 5/8 
 118 
 10.4 
 294 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
 2676 
 57 mm/ratchet/150 Cam-Matic/becket 
 2 1/4 
 57 
 5 5/8 
 143 
 10.7 
 303 
 3/16 
 5 
 3/8 
 10 
 792 
 359 
 2380 
 1080 
   75 mm 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2690 
 75 mm 
 2 15/16 
 75 
 6 3/16 
 157 
 8.4 
 238 
 1/4 
 6 
 9/16 
 14 
 1212 
 550 
 3637 
 1650 
 2691 
 75 mm/becket 
 2 15/16 
 75 
 7 7/16 
 189 
 9.1 
 257 
 1/4 
 6 
 9/16 
 14 
 1212 
 550 
 3637 
 1650 
 2692 
 75 mm/150 Cam-Matic* 
 2 15/16 
 75 
 6 3/16 
 157 
 15 
 424 
 1/4 
 6 
 1/2 
 12 
 900 
 408 
 2250 
 1020 
 2693 
 75 mm/150 Cam-Matic/becket 
 2 15/16 
 75 
 7 7/16 
 189 
 15.6 
 443 
 1/4 
 6 
 1/2 
 12 
 1212 
 550 
 3637 
 1650 
 2694 
 75 mm/ratchet 
 2 15/16 
 75 
 6 3/16 
 157 
 9.5 
 270 
 1/4 
 6 
 1/2 
 12 
 1212 
 550 
 3637 
 1650 
 2695 
 75 mm/ratchet/becket 
 2 15/16 
 75 
 7 7/16 
 189 
 10.2 
 289 
 1/4 
 6 
 1/2 
 12 
 1212 
 550 
 3637 
 1650 
 2696 
 75 mm/ratchet/150 Cam-Matic* 
 2 15/16 
 75 
 6 3/16 
 157 
 16.1 
 456 
 1/4 
 6 
 1/2 
 12 
 900 
 408 
 2250 
 1020 
 2697 
 75 mm/ratchet/150 Cam-Matic/becket 
 2 15/16 
 75 
 7 7/16 
 189 
 16.8 
 475 
 1/4 
 6 
 1/2 
 12 
 1212 
 550 
 3637 
 1650 
*Maximum working loads and breaking loads for blocks based on cam strengths. 
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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