Ronstan RF35141 30mm Stand-Up Pulley Block | Orbit Series Ball Bearing BlockThe Ronstan RF35141 Stand Up Pulley Block is a compact and lightweight 30mm Orbit Series block featuring an integrated stand up base and ball bearing sheave. Designed for deck mounted control systems, it offers excellent alignment and efficient line handling in tight rigging spaces on dinghies, skiffs, and sports boats. Made with a fibre reinforced composite frame, UV stable acetal sheave, and ball bearings, the RF35141 delivers high performance, low

Model: RF20175

Built with corrosion-resistant materials and a secure locking mechanism

this cheek block is engineered to provide efficient low-friction line handling for cruising yachts

Integrated becket for multi-part line setups

Manual operation with smooth rocker-action control

energy-efficient unit

The UV-resistant acetal sheaves ensure long-lasting durability and consistent line handling

Suitable for a wide range of control systems including halyards

UV-resistant and corrosion-proof materials

and dependable performance in wet or dry conditions

Weight - 75 g

not the thread itself