System 22 - Main Sheet System, 1500 mm Standard Track, 6:1 Purchase Standard The 100mm Plain Bearing Block

The 100mm Plain Bearing Block - Double is designed for up to 4 ton working load

The BBB60 Fiddle Block features a large 60 mm primary sheave and a smaller secondary sheave

The BBB60 Single Swivel Block is a 60 mm ball bearing block with a swiveling shaft

PBB 70 and RBB 60 blocks

Max line size: 20 mm

System 22 - Main Sheet System, 1500 mm Standard Track, 6:1 Purchase Standard The 100mm Plain Bearing BlockTo determine which size of track you need, Seldn has developed a Main Sheet Track Calculator which is available on line. You will be asked to fill in your boats Righting moment at 30 heel no worries there is a calculator for that too. https: support. seldenmast. com en services calculators. html The System 22 Main Sheet Track Assembly is designed for medium sized sailboats, with a 6: 1 purchase operated through cam cleats on the car. The kit includes: