- Ultra Lightweight
- Low friction 2-stage Orbital ball bearing system
- Highest working load in its class
- Low profile and compact
- High performance cleating
- Easily fitted and securely retained Dyneema Link head
The Ronstan 40mm Block is great for use as part of an Optimist mainsheet system. It can also be used in a variety of other dinghy and skiff classes for spinnaker sheet and mainsheet blocks.
Using Ronstan's Dyneema soft attach system, this block can be fixed to a number of different points in a boat, and will not wear out any of the fittings on the boat.
The low friction ball bearing system engineered in to the design of this block allows for accurate sheet trim, ensuring you can milk out every knot of speed from your boat.