Ronstan
Ronstan RF13101 15mm Single Kite Block Lightweight Pulley
The Ronstan RF13101 Single 15mm Kite Block is a compact, lightweight pulley designed for high-speed, low-load sailing applications where minimum weight and smooth line handling are essential. Featuring a 15mm UV-stabilised Acetal sheave housed in durable nylon cheeks, this maintenance-free block is ideal for control lines, leech lines, shock cord systems, and other lightweight rigging applications on dinghies, skiffs, sports boats, kite boats, and performance sailing craft.
Designed to handle ropes up to 4mm in diameter, the RF13101 provides efficient low-friction performance while maintaining an exceptionally compact and lightweight profile. Its simple construction makes it highly reliable with no moving metal components requiring maintenance, making it an excellent choice for demanding marine environments.
Manufactured using UV-resistant Acetal sheaves and durable nylon cheeks, the block delivers excellent resistance to saltwater, sunlight, and continuous outdoor exposure. Whether used for trapeze retrieval systems, vang controls, cunningham systems, bunk adjusters, or general control lines, the Ronstan RF13101 offers dependable performance season after season.
Trusted by sailors worldwide, Ronstan's Series 15 Utility Blocks provide an economical and reliable solution for lightweight control systems on both racing and cruising boats.
Key Features
- Genuine Ronstan RF13101 Single Kite Block
- Sold individually
- Compact 15mm Acetal sheave
- Lightweight nylon cheek construction
- Suitable for rope up to 4mm
- Maintenance-free design
- UV-stabilised sheave
- Corrosion-resistant materials
- Smooth low-friction operation
- Ideal for lightweight control lines
- Extremely lightweight at only 5g
- Suitable for sailing and marine applications
- Long-lasting marine durability
Ronstan specifies a 15mm sheave, 4mm maximum rope diameter, 150kg maximum working load, 300kg breaking load, and a weight of just 5g.
Why Buy the Ronstan RF13101 from Barton Marine NZ?
At Barton Marine NZ we supply genuine Ronstan sailing hardware trusted by New Zealand sailors and yacht owners. The RF13101 Kite Block is an excellent solution for lightweight sail control systems where compact size, smooth operation, and reliability are essential.
Perfect for:
- Leech line systems
- Shock cord tensioning
- Cunningham controls
- Vang systems
- Trapeze retrieval systems
- Dinghy rigging
- Sports boats
- Skiffs
- Kite sailing applications
- General lightweight control lines
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Ronstan |
| Model | RF13101 |
| Product Type | Single Kite Block |
| Sheave Diameter | 15mm |
| Maximum Rope Diameter | 4mm |
| Maximum Working Load | 150kg |
| Breaking Load | 300kg |
| Weight | 5g |
| Sheave Material | UV-Stabilised Acetal |
| Cheek Material | Nylon |
| Marine Suitable | Yes |
Ronstan manufactures the Series 15 Kite Block using UV-stabilised Acetal sheaves and nylon cheeks for lightweight durability and maintenance-free operation.
Common Applications
The Ronstan RF13101 is commonly used for:
- Cunningham systems
- Boom vang controls
- Leech line tackles
- Shock cord systems
- Trapeze retrievers
- Bunk adjusters
- Dinghy rigging
- Small yacht control lines
- Performance sailing systems
- General-purpose lightweight rigging
Ronstan recommends the Series 15 Kite Block for lightweight control line applications where compact size and low friction are priorities.
Performance Benefits
The Ronstan RF13101 provides:
- Smooth line handling
- Low-friction performance
- Extremely lightweight construction
- Reliable maintenance-free operation
- Excellent UV resistance
- Long service life
- Compact installation
- Trusted Ronstan quality
Its simple, lightweight design makes it ideal for high-performance sailing applications where reducing weight and maintaining smooth control are critical.
