Chinook Windsurfing Carbon Mast Extension RDM US Cup
£145.99 – £155.99
The Chinook Sailing Carbon US Cup-RDM-Tall 32cm and 46cm Extensions are elegant and very strong. A new easy to use Composite Snap Collar system eliminates lost pins or collars and can be quickly adjusted with one hand. All extensions come with the proven US Power-Haul pulley and cleat system and 2 cm adjustment increments.
- Adds maximum of 32cm/46cm to mast length
- Reduced Diameter
- US Basecup
- Large brass pulleys for increased leverage
- Stronger than aluminum
SKU:
N/A
Categories: Chinook, Mast Extensions
Additional information
| Type |
RDM |
|---|---|
| Size |
32cm ,46cm |
| Rope |
Standard Downhaul (Free) |
| Brand |
Chinook |
| Construction |
Carbon |
Reviews (0)
Be the first to review “Chinook Windsurfing Carbon Mast Extension RDM US Cup” Cancel reply
Shipping & Delivery
CLICK AND COLLECT:
If you are located in the UK at the checkout you will be able to select to collect from our Gosport Store
COURIERS WE USE:
Royal Mail for small and medium parcels
DPD for medium items like kites, harnesses and iSUPs
UPS, FedEx & Parcel Force for larger items like booms masts and boards
DISPATCH: All items are dispatched from our Gosport store and will experience a 24hr delay where we are closed on Tuesdays. Any orders taken after 1pm on Friday and over the weekend will be dispatched on Monday.
OUTSIDE UK: Please contact us if you would like something posted outside the UK.
EU Postage: Currently all EU items are attracting duty fees in your country and for this reason our webstore is not setup for orders to the EU but if you would like to purchase from us please.
RETURNS: You are responsible for returning items to us and if a refund is required we will refund only the value of the item and not the postage. Returns must be made within 14 days unless the item is deemed faulty.
RETURNS ADDRESS:
Andy Biggs Watersports
103 Bury Road
Alverstoke
Gosport
PO12 3PR
Please make sure to include your name so we can match up with your original order
DAMAGED ITEM: If an item is damaged in transit you must notify the us immediately upon delivery and let us know as soon as you can.
You may also like…
Downhaul Outhaul Inhaul for Windsurfing 3.8mm Dyneema ‘Formuline’ Downhaul Rope
£3.60 – £72.00
In stock
This stuff is super smooth and lasts for a very long time compared to standard downhaul.
£3.60 per metre.
We will ship this is one total length. Please contact us if you would like it pre cut to particular lengths.
What length to buy if you are not sure:
- Downhaul 1.5 or 2m
- Outhaul 1m
- Inhaul (around the front end mast clamp) 1m
Select options
This product has multiple variants. The options may be chosen on the product page
Related products
Severne Triple Xtension HD RDM
£109.00 – £119.00
In stock
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
Select options
This product has multiple variants. The options may be chosen on the product page
Chinook Alloy Adjustable SUP Paddleboarding Paddle – Blue
Only 1 left in stock
- Aluminium shaft with polymer blade
- Ideal paddle for new paddlers and SUP schools
- Ovalised shaft for enhanced stiffness and comfort
- Stunning blue anodised textured shaft for grip
- Excellent durability
- Adjustable shaft 173-213cm
- for multiple users
- shorter for waves, longer for flat water
- Small paddle area for higher cadence and smaller paddlers
- Rubber inlaid handle for comfort and positive grip
- Rounded blade to prevent catching in waves or chop
- Dyhedral blade for paddling stability
- Competitive price
ION Mast / Board Protector – Black
£59.00
In stock
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
Select options
This product has multiple variants. The options may be chosen on the product page
Streamlined RDM Windsurfing Mast Extension
£99.95 – £109.95
Temporarily out of stock, please call - 023 9246 7755
Aluminium
Red-line extensions start with custom 32 millimeter, 6061 T-8 “drawn” aluminum tubing. The kind of tubing they use to make aircraft. Our tubing is engineered so that with its large diameter, the wall thickness can be thinner so the overall result is an incredible high strength, to low weight ratio. This formula has been proven with our years of experience. The holes are precision punched, then the tube is red anodized in and out, permanent laser numbered 2 centimeter settings. The adjustment settings are held with a hard anodized aluminum collar tethered with a spectra line to a stainless steel pin. Fail-safe and virtually break proof. Finally we attach our new beefy “Power-Six” super powerful 6:1 downhaul cleat with large diameter pulleys, perpendicular for power, easy rigging and no crossed lines. A tough Dyneema “super downhaul” line is included.
Select options
This product has multiple variants. The options may be chosen on the product page
Chinook Windsurfing Mast Extension SDM Euro Pin
£69.95 – £99.95
In stock
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
Select options
This product has multiple variants. The options may be chosen on the product page
Radz Windsurfing Mast Extension RDM
£52.95 – £59.95
In stock
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
Select options
This product has multiple variants. The options may be chosen on the product page
Severne Wave Grenade HD Carbon Windsurfing Mast Extension 24cm+36cm
£215.00 – £235.00
In stock
WAVE GRENADE CARBON 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 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 inflight outhaul kit
£69.95
Only 2 left in stock
- Everything you need to adapt a Chinook or any other boom into a low friction, 8 to 1, on-the-fly out-haul system
- Includes 2 cleats, double sail pulley, 4mm pre-stretched line (1-12’,2-5’ lengths), two Ronstan pulley blocks, and 2 T-handles
- Compatible with modern race booms that have three integrated outhaul pulleys
- Modern high performance sails often benefit from adjustable outhaul;
- Different wind angles (broader = looser)
- Wind strengths (stronger = tighter)
- You'll be amazed at the difference it makes!
- All serious racers use in-flight adjustable outhauls
- Fantastic for ALL performance blasters

Reviews
There are no reviews yet.