The Duotone Black.50 is the latest beginner-class mast in the Duotone range – a dynamic and competitive all-rounder with 50% carbon content and a universal, balanced bend curve.
It works not only with Duotone sails but is also compatible with many other sail brands and models. The above-average durability and competitive price make it an attractive choice for a broad range of sailors.
Order today from Worthing Watersports – the UK’s Duotone specialist store
Key Features
Your entry into the world of windsurfing high-end masts
50% carbon content
T600 carbon quality
SENTEX® resin quality
Sporty Allrounder: The high breaking strength and attractive price make it a good choice
2 year unconditional warranty when registered online
Sizes & Specs
RDM (reduced diameter) masts are available in 370, 400 and 430 cm lengths. SDM (standard diameter) masts are available in 430, 460 and 490 cm lengths.
| Model |
IMCS |
Carbon (%) |
Carbon quality |
Resin quality |
| RDM 370 |
17 |
50 |
T600 |
SENTEX® |
| RDM 400 |
19 |
50 |
T600 |
SENTEX® |
| RDM 430 |
21 |
50 |
T600 |
SENTEX® |
| SDM 430 |
21 |
50 |
T600 |
SENTEX® |
| SDM 460 |
25 |
50 |
T600 |
SENTEX® |
| SDM 490 |
28 |
50 |
T600 |
SENTEX® |
Warranty
This product qualifies for a 2 year unconditional warranty. To secure the extended cover, please register your product with Duotone within 30 days of purchase at duotonesports.com (Warranty Registration). Otherwise only the legal warranty period can be granted.
Product Code
14900-1612
🚚 Shipping Info (UK)
We offer FREE UK shipping on orders over £50. For orders under £50, a small £4.75 shipping fee applies.
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Smaller items ship via Royal Mail First Class
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Larger or bulkier items go via courier (usually next working day)
We aim to pick and pack orders within one working day. Some larger items may take up to two days to prepare, especially if they require custom packaging or boxing.
📦 Check the stock location shown near the “Add to Cart” button.
Being the UK's Duotone / Fanatic / ION Specialist store we are proud to be the only UK retailer with a live stock feed from their warehouse — so you can shop with real-time confidence.
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In-store stock typically ships within 1–2 working days.
- Our shop is normally closed on Tuesdays and Wednesdays, but during busy summer months we may process orders more frequently.
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Warehouse stock can take 5–10 working days to arrive before dispatch.
- Large items from the supplier are often drop-shipped directly to your door, with tracking uploaded once available.
🛡️ For high-value orders (e.g. complete setups or large kits worth thousands), we include a discreet tracking device inside the parcel and provide a free returns label for added peace of mind. We take extra care with these deliveries to make sure everything arrives safely.
