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Sail Track Stops / square

SVB item number: 51421
View Ratings (38) Questions (3)
Sail Track Stops square Image 1 of 2 Item 51422
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Zsolt F.: "Perfect - It corresponds to the description, I woul..."
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This very useful sail track stop for square mast tracks prevents the lug from slipping off while reefing the main sail. The stopper can be adjusted easily with the locking screw.
Product details
only  €27.95
23 | in stock
pcs.
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Available variants

Sail Track Stops / round groove
Sail Track Stops / round groove
Sail Track Stops / round groove
only €30.95
VAT inc., ex-works
To product

At a glance!

Aluminium
Aluminium
Nickel-plated brass
Nickel-plated brass
by gerold M.
Fits in the groove and serves its purpose.
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by Roger H.
Fits well! holds and can be used well ..
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by jean marc W.
The line stop whose base 29 10 3 mm does not appear in the catalog.
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by jean marc W.
The line stop whose base 29 10 3 mm does not appear in the catalog.
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by Olivier J.
very suitable
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Product data

  • SVB item number 51421
  • EAN 011698235100
  • Description Sail track stop
  • Length 25 mm
  • Width 10 mm
  • Mast slider type Mast slide stopper
  • Material Aluminium, Nickel-plated brass
  • Accessories for Masts

Accessories

Image of Mastslider Type 1
ALLEN BROTHERS Mastslider Type 1
from €2.20
Image of Lug Type 2
ALLEN BROTHERS Lug Type 2
from €4.95
Image of Type 3 Track Slides
ALLEN BROTHERS Type 3 Track Slides
from €2.30

Product details

This very useful sail track stop for square sail tracks prevents the lug from slipping off while reefing the main sail. The stopper can be adjusted easily with the locking screw.

Features

Discover the features that make this product stand out. From technical details to special functions – we’ve summarized all the key information for you.

Material
Aluminium Nickel-plated brass
51422_Mastrutscher-Stopper_Basis_25x10x3mm_1.jpg

Product safety

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What other SVB customers have to say

100% real reviews

38 customer reviews

4.4 (out of 38 ratings)
5 Stars
(21)
4 Stars
(15)
3 Stars
(1)
2 Stars
(0)
1 Stars
(1)
All reviews Latest ratings 5
4
3
1
Alessandro C.
by Alessandro C. Flag of Italy 4/23/2026 Variant: 51422 in use on a Bénéteau - First 35
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Lock cursors
Excellent product, well-built and easy to use. Used to lock the mainsail sliders, it does its job well.
Pere R.
by Pere R. Flag of Spain 11/28/2025 Verified purchase Variant: 51422
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It fulfills its purpose perfectly. Perfect!
Roger A.
by Roger A. Flag of United Kingdom 2/21/2025 Verified purchase Variant: 51422
Easy to Use
Easy to fit and easy to use.
It seems to be well built too.
Pleased with it.
Alexander P.
by Alexander P. Flag of Germany 8/30/2023 Verified purchase Variant: 51421
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Terrific
My previous mast slide stopper could only be loosened with an Allen key. Most of the time, the right size was not at hand. With this article from SVB everything has become much easier. Just turn and you're done!
Dr. W.
by Dr. W. Flag of Germany 8/24/2023 Verified purchase Variant: 51422
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fits and does what it should
Blocks mast slip reliably, everything ok
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Customers ask customers

English (1) Deutsch (1) Français (1)
Technical question
VENTS V. | Jun 2, 2021 Flag of English
User image of VENTS V.

Hello. Can you give all dimension of Sail Track Stops 25x10x3. item no. 51421? Thank you.

Answer from SVB customer service
Cory V. | Mar 10, 2023
User image of Cory V.

Dear customer, 3x3x3 cm

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Sail Track Stops / square
Width 10 mm
€27.95
VAT inc., ex-works