Ronstan Orbit Blocks - Series 100 - Single, Lashing Block performance : 4528-0001 Impeller Material :

: 4528-0001 Impeller Material : Neoprene No

This pressure is then transmitted through flexible tubing into the bourdon tube movement inside the speedometer head where it is converted into a speed reading by the movement mechanism

Kit includes:

Gear Reduction (small) Straight Bolt Pattern

Ronstan Orbit Blocks - Series 100 - Single, Lashing Block performance : 4528-0001 Impeller Material :The highest strength to weight ratio Minimal friction loss, especially when working at high loads Totally reliable and trouble free performance Simplicity of design and construction to facilitate maintenance and servicing Elegant, functional styling and finish Orbit blocks are a no compromise product range developed to meet the demands and expectations of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head