SKU: 69090129995

MDS 80 - Heavy Duty Full-batten car in aluminium with M10 stud - for Seldén mast sections C321 and C365

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Description

MDS 80 - Heavy Duty Full-batten car in aluminium with M10 stud - for Seldén mast sections C321 and C365A six wheel, 80 mm long full batten car in aluminium with M10 stud Dimensioned for a righting moment at 30 heel of maximum 550 kNm on a masthead rigged monohull yacht and 450 kNm on a fractional rig. The MDS full batten concept Full support in all directions As the name implies, Seldns MDS (Multi Directional Support) cars are supported in all directions, making sail handling simpler. A full batten always creates a side load on the cars, particularly

A six wheel, 80 mm long full-batten car in aluminium with M10 stud

Dimensioned for a righting moment at 30° heel of maximum 550 kNm on a masthead rigged monohull yacht and 450 kNm on a fractional rig.

The MDS full-batten concept  -  Full support in all directions

As the name implies, Seldén’s MDS (Multi-Directional Support) cars are supported in all directions, making sail handling simpler.

A full batten always creates a side load on the cars, particularly when you release the halyard for taking a reef. Each MDS car has side-load absorbing wheels that run against the guiding flanges in the luff groove. The interaction between the mast section and the MDS car deals with longitudinal loads, as well as side loads. This is the essence of the MDS concept. Since the cars need no external track, there is also less weight aloft.

The MDS cars are easy to keep clean and are easy to install or remove from the luff groove. 

The MDS system is a suitable complement to the Seldén Single Line Reef boom. With such a combination on board, you have a simple and easily manoeuvred system for handling the mainsail in all weathers.

 

Learn more about our Sail hardware from Seldén's Sailmakers Guide

https://support.seldenmast.com/files/1731490672/595-542-E.pdf

Model: MDS 80 ALU
H: 80 mm
A: 70 mm
L: 29 mm
B: 23 mm
Thread: M10
SWL+Horizontal: 9.00 kN
RM: 468.00 kNm
Mast: C321,C365

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Exchange/Return Notes
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SKU: 69090129995

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Mar Gee
Grantham, US
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
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Reviewed in the United States on December 14, 2025
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Lake Worth, US
★★★★★ 5
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So comfortable! They stay up perfectly love love love
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Reviewed in the United States on December 7, 2025
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Lynn Keeling
Dallas, US
★★★★★ 5
Excellent fit, do not slip
Color: Matte Black, Size: Large
Socks fit well because of excellent design, work with good shoes and tennis shoes
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Reviewed in the United States on May 27, 2026
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Grantham, US
★★★★★ 5
Expensive...BUT....you get what you pay for!
Color: Matte Black, Size: Large
I can't believe I just spent $50 on 4 pairs of socks....BUT..... I have to admit, they are amazing. They fit perfectly, are comfortable and stay on and in place. They are no-show which is just what I wanted. For reference, I'm a 10.5-11 in women's shoe and I got the Large. My one and only complaint is the price....I wish they were a little more affordable.
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Reviewed in the United States on February 2, 2026
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Peggy
Massapequa, US
★★★★★ 5
Worth the Price
Color: Matte Black, Size: Medium
At first, I was unsure because of the price, but wow—I was wrong. These worked perfectly with my loafers and flats. They stayed in place and fit comfortably all day. The only downside is the logo on the back, but overall I really like these socks.
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Reviewed in the United States on May 6, 2026

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