Description
Ronstan Shock 3/8" Line Blue | Boat Supply Store
Engineered for extreme conditions, this Ronstan Shock minimizes friction and maximizes durability in environments where traditional bearings fail. Its sheaveless, 3D geometry design accepts lines up to 10mm (3/8") and provides a substantial 1,000kg (2,200lbs) breaking load. Ideal for soft attachment applications on high-performance dinghies and kitesurfing rigs exposed to sand and salt, this unit measures only 14.5mm (9/16") in height.
Key Features
- Unparalleled Durability via sheaveless, 3D geometry design for maintenance-free operation.
- Lightweight & Compact construction with a high load capacity of 1,000kg (2,200lbs).
- Line Protection due to a gentle 3-dimensional geometry that is kind to lines.
- Versatile Soft Attachment for direct splicing or lashing to lines and webbing.
- Extreme Environment Ready with superior grit and salt resistance.
- Broad Line Compatibility accepting diameters from 1.4mm (1/16") to 10mm (3/8").
- Impact Resistant construction for rigorous use.
- Color-Coded Blue for straightforward identification within rigging systems.
Specifications
| Product Specifications | |
|---|---|
| Brand | Ronstan |
| Product Name | Ronstan Shock |
| Line/Webbing Size | 3/8" |
| Color | Blue |
| Sheave Type | Sheaveless |
| Line Diameter Range | 1.4mm (1/16") to 10mm (3/8") |
| Height | 14.5mm (9/16") |
| Width | 24.8mm (1") |
| Length | 36mm (1-7/16") |
| Breaking Load (B.L.) | 1,000kg (2,200lbs) |
| Weight | 12g (0.42oz) |
| Material | Anodized Aluminum |
| Attachment Method | Soft Attachment / Webbing |
Who This Is For
Kitesurfers, paragliders, and sports kite enthusiasts, alongside sailors of high-performance dinghies and small sailboats, requiring robust, lightweight hardware for control line deflection. This product is essential for those operating in sandy or saline conditions where traditional bearing blocks may falter.
How It Compares
| Feature | Ronstan Shock 3/8" Line Blue | Competitor |
|---|---|---|
| Sheave | Sheaveless | Sheaved, Sheaved |
| Max Line Diameter | 10mm (3/8") | — |
| Weight | 12g (0.42oz) | 28g (0.99oz), 15g |
| Breaking Load | 1,000kg (2,200lbs) | 1,500kg (3,300lbs), 1,000kg |
| Durability in Grit/Sand | High (Sheaveless) | Moderate (Sheaved), Moderate |
| Attachment Type | Soft Attachment / Webbing | Soft Attachment, Soft Attachment |
Common Concerns Answered
Why choose a sheaveless design when sheaved blocks are common?
The sheaveless design of the Ronstan Shock eliminates potential failure points common in sheaved blocks, such as grit contamination and bearing wear, providing superior durability and maintenance-free performance in harsh marine and outdoor environments.
Is the breaking load sufficient for my application?
With a breaking load of 1,000kg (2,200lbs), this Ronstan Shock is engineered for demanding applications like high-performance dinghy rigging and kitesports; however, for exceptionally heavy-duty static loads, larger traditional blocks might be considered.
The price seems higher than basic blocks, is it justified?
The investment in a Ronstan Shock is justified by its exceptional durability, resistance to abrasive elements like sand and salt, and its maintenance-free operation, which leads to a lower total cost of ownership in challenging conditions compared to conventional blocks.
Frequently Asked Questions
What is the maximum line size this Ronstan Shock can accommodate?
This Ronstan Shock is designed to accommodate lines ranging from 1.4mm (1/16") up to 10mm (3/8") in diameter.
What is the breaking load of the Ronstan Shock - 3/8" Line - 3/8" Webbing - Blue?
The breaking load (B.L.) for this specific Ronstan Shock model is 1,000kg (2,200lbs).
What are the dimensions of the Ronstan Shock - 3/8" Line - 3/8" Webbing - Blue?
The dimensions are 14.5mm (9/16") in height, 24.8mm (1") in width, and 36mm (1-7/16") in length.
What materials is the Ronstan Shock made from?
This Ronstan Shock is constructed from durable anodized aluminum.
How does the Ronstan Shock attach to lines or webbing?
It is designed for soft attachment, allowing it to be spliced directly to a line end or lashed in place. The elongated aperture also accommodates direct webbing attachment.
