A four-sheave swivel block for 5:1 and 6:1 mainsheet and control systems on performance dinghies and small keelboats. Part of Harken's light, low-friction Carbo range.
Key features
- Four 75 mm sheaves in one block for high-purchase systems
- Low-friction ball-bearing sheaves for constant trimming
- Swivel head lines up with the load
- Light composite construction
Specifications
| Sheave Ø |
75 mm (2 15/16 in) |
| Sheaves |
4 |
| Max line Ø |
14 mm (9/16 in) |
| Max working load |
1,650 kg (3,639 lb) |
| Breaking load |
4,535 kg (10,000 lb) |
| Weight |
772 g (27.2 oz) |
| Length |
159 mm (6 1/4 in) |
| Shackle pin Ø |
8 mm (5/16 in) |
| Series |
Harken Carbo Air |
Sailor's take
For racers running a 5:1 or 6:1 mainsheet who trim all day. Pair it with a matching Carbo triple with becket and cam. Cruisers on bigger boats will usually go to a 2-speed mainsheet with a winch instead.
Downloads
Special order. We order this from Harken for you. Special-order items can't be returned, so check the specs and fit, or ask us before you buy.
