Mast Extensions
Radz Windsurfing Mast Extension RDM
Radz Windsurfing Mast Extension RDM
Does not come with downhaul! Please remember to add standard downhaul or formuline downhaul to your order.
Mast extension incorporating a euro pin base.
Available in RDM or SDM and in sizes - 15cm, 30cm and 45cm
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This product has multiple variants. The options may be chosen on the product page
Radz Windsurfing Mast Extension SDM
Radz Windsurfing Mast Extension SDM
Does not come with downhaul! Please remember to add standard downhaul or formuline downhaul to your order.
Mast extension incorporating a euro pin base.
Available in RDM or SDM and in sizes - 15cm, 30cm and 45cm
Select options
This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Mast Extension RDM Euro Pin
Chinook Windsurfing Mast Extension RDM
Probably the most highly regarded extensions on the market.
- Large brass rollers significantly reduce friction and give easy down hauling.
- New easy to use Composite Snap Collar eliminates lost pins and can be quickly adjusted with one hand
- Large finger friendly metal release button - with a good positive action.
- Finished in a stunning blue anodized outer coating.
- Highly visible and durable height adjustment markings.
- High grip clam cleat and quality downhaul rope.
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This product has multiple variants. The options may be chosen on the product page
ION Mast / Board Protector – Black
Put this on below your boom and it should save your nose off your windsurf board if the rig comes down over the nose.
- Small = RDM
- Large = SDM
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This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Carbon Mast Extension RDM Euro Pin
Probably the most highly regarded extensions on the market.
- Ultra light weight
- Elegant and very strong
- New easy to use Composite Snap Collar eliminates lost pins and can be quickly adjusted with one hand
- Large brass rollers significantly reduce friction and give easy down hauling
- Fully adjustable, easy to use collar, with pin & line
- Large finger friendly metal release button - with a good positive action
- Highly visible and durable height adjustment markings
- High grip clam cleat and quality downhaul rope
- Stylish gloss finish
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This product has multiple variants. The options may be chosen on the product page
Severne Wave Grenade HD Alloy Windsurfing Mast Extension 24cm+36cm
WAVE GRENADE ALUMINIUMÂ 36cm / 24cm
OUR NO COMPROMISE WAVE GRENADE CARBON HAS BEEN REDESIGNED FOR THE ULTIMATE DURABILITY.
Tube diameter and wall thickness have been increased for incredible reliability.
WAVE GRENADE HD Â 36cm / 24cm
HEAVY DUTY
HD stands for Heavy Duty. The new WAVE GRENADE HD has 36cm or 24cm of adjustment for better compatibility with our wave sail range. We analyzed the need for more reliable tubes over this increased length and tested a variety of Aluminum specification. We decided on a wall thickness 33% thicker and an increased outside diameter, for the ultimate durability against bending and breaking.
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This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Mast Extension SDM Euro Pin
The new Six Pin adjusting collar and anodized logo/index markings are some of the unique and innovative features that make these the most popular extensions on the market. Standard with the proven Euro-Pin EX Power-Haul pulley and cleat system and 2 cm adjustment increments.
- Standard Diameter
- Euro-Pin EX
- Stainless steel button engages three sides of Euro-Pin for safer attachment
- Large brass pulleys for increased leverage
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This product has multiple variants. The options may be chosen on the product page
Duotone Power.XT 2.0 Alloy Windsurfing Extension
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An inspiring (r)evolution – the POWER.XT 2.0 can do much more and do it better than the previous model. And as POWER.XT 2.0 SLS RDM 36 it is also the most lightweight ratchet extension of all time! Beyond the basic idea, the POWER.XT 2.0 has almost nothing in common with the previous model any more. From the extremely solid ratchet mechanism plus lever to the simplified release mechanism, the high-strength Lyros® Dyneema harness downhaul lines and the option to retrofit the damper function – everything has been radically upgraded. The latest version comes with a completely new adjustment ring, which offers a unique feature: based on the tried-and-tested SDM adjustment ring, the RDM version now for the first time ensures that the aluminum tube does not come into contact with the mast anymore, which avoids any contact corrosion. No other RDM extension can offer that! In order to guarantee the same durability despite the reduced diameter, a double-walled sandwich construction of 7075 aluminum outer tube and ovalized T8 inner tube is used (patent pending). For many years, the POWER.XT has been the benchmark when it comes to extensions with trimming tools. Those who use it will never want to do without it again. Thanks to the integrated lever, it overcomes even the strongest downhaul forces, enabling perfect re-trimming or fine-tuning even when on the water. Even children could handle the extreme luff tension of modern slalom sails, each profile can be adjusted to millimetre precision in a matter of seconds. The 15 cm long lever and the ratio of 1:60 enable trimming without any noticeable effort.
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This product has multiple variants. The options may be chosen on the product page
Severne Race HD Windsurfing Mast Extension
RACE EXTENSION HD
FUNCTION AND RELIABILITY.
Solid Aluminium tubes combined with triple pulleys for friction free high tension downhauling.
Severne offers 3 sizes of the HD extension to compliment the race and freeride range.
24 CM - Mid range adjustability
36 CM - Extra length when required
ALIGNED TRIPLE PULLEYS
STAINLESS STEEL AUTOMATIC HINGED COLLAR SYSTEM
STAINLESS STEEL BUTTON AND MECHANISM
0CM SETTING
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This product has multiple variants. The options may be chosen on the product page
Severne Triple Xtension HD RDM
TRIPLE XTENSION
3 PULLEY RDM EXTENSION.
With more people running freeride and slalom sails on RDM masts, the necessity for a 3-pulley RDM extension became obvious.
Design focused on reducing downhaul friction for easier rigging. Careful attention to rope alignment and pulley spacing has enabled significant improvements. Perfectly matched to any sail with the 4-roller tack pulley, the Triple Xtension also suits sails with the 3-roller tack pulley. Other features include Dyneema rope and an integrated hook to anchor the tack strap.
/ ALIGNED TRIPLE PULLEYS
/ STAINLESS STEEL BUTTON AND MECHANISM
/ STAINLESS STEEL AUTOMATIC HINGED COLLAR SYSTEM
/ ZERO CM SETTING
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This product has multiple variants. The options may be chosen on the product page
Severne Cyclops HD RDM Aluminium Mast Extension 24+36cm
Severne Cyclops RDM Mast Extension
RIG YOUR SAIL IN UNDER 1 MINUTE
The CYCLOPS extension has a single pulley for rapid loop ‘n go rigging. Simply pass the loop of rope through the tack pulley on the sail and hook it over the single pulley on the extension. A single pull applies full downhaul tension in seconds. All the ropes and pulleys are kept in perfect alignment to eliminate a lot of the friction and makes up for any loss of leverage from less pulleys. A built-in handle negates the need for any tool, and stuff into the downhaul pocket on the sail. Formuline rope is used to further reduce friction and minimize rope wear. Faster, simpler rigging.
- SINGLE LOOP-GO PULLEY
- EFFICIENT PULLEY ALIGNMENT
- NEW STAINLESS STEEL AUTOMATIC COLLAR
- STAINLESS STEEL BUTTON AND MECHANISM
- ZERO CM SETTING
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This product has multiple variants. The options may be chosen on the product page
Severne Wave Grenade HD Carbon Windsurfing Mast Extension 24cm+36cm
WAVE GRENADE CARBONÂ 36cm / 24cm
OUR NO COMPROMISE WAVE GRENADE CARBON HAS BEEN REDESIGNED FOR THE ULTIMATE DURABILITY.
Tube diameter and wall thickness have been increased for incredible reliability.
WAVE GRENADE HD Â 36cm / 24cm
HEAVY DUTY
HD stands for Heavy Duty. The new WAVE GRENADE HD has 36cm or 24cm of adjustment for better compatibility with our wave sail range. We analyzed the need for more reliable tubes over this increased length and tested a variety of Aluminum specification. We decided on a wall thickness 33% thicker and an increased outside diameter, for the ultimate durability against bending and breaking.
Select options
This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Mast Extension RDM US Cup
- Unconditional 12 month warranty
- Large brass rollers significantly reduce friction and give easy down hauling.
- New easy to use Composite Snap Collar, eliminates lost pins and collars and can be quickly adjusted with one hand
- Large finger friendly metal release button - with a good positive action.
- Finished in a stunning blue anodized outer coating.
- Highly visible and durable height adjustment markings.
- High grip clam cleat and quality downhaul rope.
Select options
This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Carbon Mast Extension SDM Euro Pin
Improved lay-up and manufacturing process! Our lightest extensions come with a Six Pin adjusting collar and are stronger than ever with reinforced sidewalls. All come with the proven Euro-Pin EX Power-Haul pulley and cleat system and 2 cm adjustment increments.
- Unconditional 12 month warranty
- Ultra Lightweight.
- Redesigned with stronger than ever reinforced side walls.
- Large brass rollers significantly reduce friction and give easy downhauling.
- Fully adjustable, easy to use slim line snap-on collar.
- Large finger friendly metal release button - with a good positive action.
- Highly visible and durable height adjustment markings.
- High grip clam cleat and quality downhaul rope.
Select options
This product has multiple variants. The options may be chosen on the product page
Severne Cyclops RDM Carbon Mast Extension 24+36cm
Severne Cyclops RDM Mast Extension
RIG YOUR SAIL IN UNDER 1 MINUTE
The CYCLOPS extension has a single pulley for rapid loop ‘n go rigging. Simply pass the loop of rope through the tack pulley on the sail and hook it over the single pulley on the extension. A single pull applies full downhaul tension in seconds. All the ropes and pulleys are kept in perfect alignment to eliminate a lot of the friction and makes up for any loss of leverage from less pulleys. A built-in handle negates the need for any tool, and stuff into the downhaul pocket on the sail. Formuline rope is used to further reduce friction and minimize rope wear. Faster, simpler rigging.
- SINGLE LOOP-GO PULLEY
- EFFICIENT PULLEY ALIGNMENT
- NEW STAINLESS STEEL AUTOMATIC COLLAR
- STAINLESS STEEL BUTTON AND MECHANISM
- ZERO CM SETTING
Select options
This product has multiple variants. The options may be chosen on the product page
Windsurfing Mast Extensions