Keelboat Parts

The Frederiksen ratchet block is legendary. It is light and very strong for optimal performance. The ratchet has a small distance between each click to enhance control of sheets. This is the ideal Laser mainsheet block. From Ronstan: The patented...

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Sheave: 75 mm / 2 15/16 in Length: 137 mm / 5 3/8 in Weight: 227 g / 8 oz Shackle pin: 6 mm / 1/4 in Maximum line: 12 mm / 7/16 in...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Sheave: 57 mm / 2 1/4 in...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Sheave: 29 mm / 1 1/8 in...

40mm ball bearing block from Ronstan in triple block with swivel head configuration. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides consistent...

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Sheave: 2 1/4 in Length: 5 5/8 in Weight: 10.7 oz Shackle pin: 3/16 in Maximum line: 3/8 in Maximum working load: 792 lb Breaking load:...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an excellent...

Ronstan All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life,...

40mm ball bearing block from Ronstan in fiddle block configuration with an included cam cleat. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides...

40mm ball bearing block from Ronstan in fiddle block configuration. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides consistent performance under the...

Ball bearing swivel bases feature dual rows of Delrin ball bearings that swivel freely even under high loads. Bases include stand-up springs and a U-adaptor to accept a variety of appropriate blocks. The low profile 205 is used when installation is at...

The Harken 240 Swivel Cam Cleat is a simple swivel base for main and jib sheets on very small boats or for control lines on boats of all sizes. This model works with line up to 12 mm and great for large diameter sheets. Height: 49 mm / 1-15/16 inch...

Swivel cleat bases permit easy cleating and releasing from any angle. The adjustable arm controls the height for optimum cleating angle. The dual rows of race ball bearings in the base minimize friction, while the adjustable ratchet system prevents the...

The Ronstan 30mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fiber and polymer technology, these blocks are ten times stronger than steel, yet more...

Ronstan's ball bearing blocks were conceived and engineered for the demands of competitive sailing in all types of boats and have rapidly become the international choice for high performance hardware. Highly efficient, low friction bearing systems for...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Sheave: 29 mm / 1 1/8...