Duotone Windsurfing - Duotone Ultra Grip (Quad) SLS (SB, incl. fin) - The Kitesurf Centre

Duotone Ultra Grip (Quad) SLS (SB, incl. fin)

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Sale price  £1,724.25 Regular price  £2,299.00
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Duotone Windsurfing - Duotone Ultra Grip (Quad) SLS (SB, incl. fin) - The Kitesurf Centre

Duotone Ultra Grip (Quad) SLS (SB, incl. fin)

Sale price  £1,724.25 Regular price  £2,299.00
ColourYellow
Size
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Supplier stock — UK delivery 7–10 working days; dates at checkout

Free UK standard delivery from £49.99

Price match guarantee

30 day hassle free returns

Trade-in available

Similar to what we have achieved with the SUPER_HERO D/LAB sails our goal was to create real game changers with our new wave board range.

What we had learned from the SUPER_HERO D/LAB development is that you need to work on all aspects to really make a decisive improvement.

Switching our board technology from the industry-standard semi custom technology to our exclusive FULL CUSTOM PRODUCTION marked the foundation for all the rest to come (see TECH AND SHAPE DETAILS below for details). Because this technology lifted our weight vs. strength ratio to a whole new level. And it finally allowed us to make every single prototype in the factory like we are doing with our sails since over 30 years. Because the best prototype is worth nothing if it can't be reproduced or feels different due to different materials, processes or weight.

To achieve a similar step up in the 3D design we decided to get our own CAD program written. Compared to the industry-standard Shape3D software our AI_BOARD_3D program is much more accurate and lets us perform even super complex shaping tasks like the brand-new SYNCED CURVES CONCEPT.

DESIGN GOALS >> SHAPE DETAILS

Our main goals were to create designs which have a maximum range of use and are easier (less exhausting) plus more radical on the wave.

Basically we wanted to create a more stable platform which is great for getting going and going over the white water. But at the same time the boards should turn even more radical when going down the line, which are opposing features you usually can't combine.

Here are the 3 major shape details our team has developed over the last 2,5 years (see TECH AND SHAPE DETAILS below for all other details):

STABLE YET RADICAL CONCEPT

Our wave boards are 1-2cm wider than most other boards. 

  • The increased width results in a more stable platform. This makes our wave boards as stable and energy-saving as a 5 liter bigger board while drifting/floating and going over white water. 
  • Most importantly the additional width leads to an increased outline curve. This improves the maneuverability which makes the board turn as radical as a 5 liter smaller board. 

The result is an unbeatable broad range of use.

3-STAGE ROCKER

Unlike the usual continuous rocker curve, our entire shape concept is based on a segmented rocker line. This accounts for the fact that the top- and bottom turn are two entirely different maneuvers. While you initiate the bottom turn more over your front foot (depending on the size of the wave) the top turn is only sailed over the back foot. This change in posture is the biggest challenge, especially when learning to wave ride - which becomes much easier with our 3-STAGE ROCKER.

  1. The straight rocker section in-between the front- and back straps creates a super stable sailing stance/platform so that you’re in perfect sync with your board going out or on the wave when switching between bottom- and top turn.
  2. The nose rocker starts just in front of the front straps which helps to engage the front part of the rail when leaning forward on the bottom turn.
  3. KICKSTARTER TAIL: The tail rocker behind the back strap remains very moderate until the last 4-5cm from the tail where it transforms into a progressive tail-kick. This tail-kick generates a perfect water release and in combination with the flat rocker line results in a kickstarter-like acceleration as soon as you push a bit with your back-foot. Plus the tail-kick obviously allows for super tight top turns when snapping back the board with your back-foot.

SYNCED CURVES CONCEPT (rocker><outline><rail)

Outline, rocker and rail shape are the 3 key elements that determine how a board feels and performs. In every rocker- and outline there are spots with more or less curvature. The same applies to the degree of rail curvature which changes considerably. To prevent the 3 curves from working "against" each other, the highest priority is to synchronize these curves. Means that in zones with an increased rocker curve, the outline curve is also increased plus the rails have an increased curvature and vice versa.

  • Increased outline curve, nose rocker and rail curvature around the mast track makes it easier to initiate the bottom turn (front foot initiated)
  • Increased outline curve, tail rocker and rail curvature behind the back strap for more radical top turns (back foot initiated)

To our knowledge this complex 3D task can only be performed by our own AI_BOARD_3D software.

We started testing this concept on existing boards and the improvements to each board were so overwhelming that we incorporated this design feature into all 2026 boards. 


Both ULTRA GRIP and GRIP are designed as World Cup Wave boards to satisfy the best of the best on all kind of conditions and spots around the globe. Here are the differences:

A. ULTRA GRIP

Focus ground swell >< windy Euro waves (not for onshore conditions)

Ideal for Maui, Capetown, Brittany, Cabo Verde, Ireland, Chile, Mauritius 

B. GRIP

Focus Euro waves >< logo-high ground swell

Ideal for Klitmøller, Canarias, North Sea, Kanaha


YOUR NEW ULTRA GRIP SLS DREAM MACHINES ARE READY AND WAITING FOR YOU TO TAKE YOUR RIDING TO THE NEXT LEVEL!

Everything you need to know about shipping, delivery times and returning items purchased from The Kitesurf Centre.

We aim to make buying watersports equipment online simple, fast and stress-free, so you can spend less time waiting and more time on the water.

Dispatch and availability

Delivery depends on the stock location and the items in your order. We aim to dispatch items held in our shop within one working day, subject to payment authorisation and availability. Items marked as supplier stock are dispatched through our supplier and have a longer delivery time.

For preorders, backorders and made-to-order items, check the selected product's availability date or lead time before ordering. Standard delivery times apply after the item becomes available; express delivery does not shorten a preorder or production lead time. Contact us if you need equipment by a particular date.

UK delivery

Standard delivery is free on eligible orders of £49.99 or more. The services available for your items and address, their charges and estimated delivery dates are shown at checkout.

Items dispatched from our shop

  • Standard: 3–5 business days; £3.99 below £49.99, free from £49.99.
  • Express: 1–2 business days; £6.99 below £49.99, £4.99 from £49.99.
  • Next Working Day Delivery: £14.99 where offered at checkout. Orders for next-working-day delivery must be placed by 11am. Contact us to confirm availability if ordering later.

Duotone supplier stock and long-lead products

  • Standard supplier delivery: 7–10 business days; £4.99 below £49.99, free from £49.99.
  • Supplier-stock items do not qualify for our shop's express or next-day services.
  • Preorder dates and made-to-order lead times are additional to the delivery service and take precedence over a generic delivery estimate.

Business days are Monday to Friday, excluding public holidays. Handling time and the time of ordering can affect the dates shown at checkout. Items from different locations may arrive separately.

International delivery

International delivery charges depend on the destination, the items ordered and their dispatch location. Enter your delivery address at checkout to see the available service, price in your checkout currency and any estimated delivery dates. UK free-delivery thresholds do not apply to international orders.

Duotone supplier delivery services are 7–10 business days to the EU, 15–20 business days to the US, Canada, the Middle East and the other European destinations covered by those services, and 20–25 business days to Australia and New Zealand. Preorder and production lead times are additional. For other destinations, or where no delivery estimate is displayed, contact us before ordering if you need a confirmed timeframe.

Large or unusual deliveries

For oversized equipment or an unusual delivery destination, contact our shop before ordering so we can confirm the delivery arrangements and applicable charge. Use the shipping quote for your actual basket and address rather than a general weight-band estimate.

VAT Free Orders (Outside the UK)

Customers outside the UK automatically receive 20% VAT removal at checkout when selecting their delivery country.

Orders may be subject to local import duties or taxes depending on your country.

VAT-free orders are also available for BFPO and military forwarding addresses, please contact us before ordering.

Delivery Information & Responsibilities

  • Delivery times are based on working days (Mon–Fri)
  • Missed deliveries or uncollected parcels returned to us will incur a redelivery charge
  • If requesting delivery to a work address or neighbour, locating the parcel is the customer's responsibility
  • Always inspect packages before signing, sign as "damaged" if needed
  • Once signed for, we cannot claim for courier damage

Please check you have received all parcels before signing, as large orders may be split into multiple boxes.

Returns & Exchanges

We hope you love your new gear, but if something isn't right, we're here to help.

You can return unused items within 30 days from delivery provided they are:

  • In original condition
  • With packaging intact
  • With tags still attached

You can choose:

  • Exchange for a different size or product
  • Store credit
  • Refund

Returns form:
Download and include this with your return.

Return shipping costs are not refunded and must be paid again for replacement items (especially for international or large item orders).

Standard UK return shipping: £4.99

Your Consumer Rights

Under the Consumer Rights Act 2015, if goods are:

  • Faulty
  • Not fit for purpose
  • Not as described

You have 30 days to reject the goods and receive a full refund.

Important Return Notes

  • Returns are sent at the customer's risk and cost
  • We are not liable for lost or damaged return parcels
  • Items remain your responsibility until received by us
  • If a partial return drops your order below £49.99, original shipping charges may be applied

Used & Ex-Demo Equipment

All used and ex-demo equipment is carefully inspected before dispatch.

Kites are:

  • Inflated and pressure tested for 4 hours
  • Checked thoroughly before shipping

Any damage must be reported before use.
Once equipment has been used, we cannot accept responsibility for damage.

Need Help?

If you have any questions about delivery, returns or choosing the right equipment, our team is always happy to help.

📞 +44 (0)1797 724126
📧 shop@thekitesurfcentre.com

Buy now, pay later. PayPal Pay in 3 is the most reliable and simple way to split the costs of a purchase over a longer period without any extra costs. Fast and easy to set up, this is our suggestion for the best free and easy finance package

Just choose PayPal at checkout and go through the options available

PayPal Credit works like a conventional credit card but gives up to 4 months without any interest

Description

Similar to what we have achieved with the SUPER_HERO D/LAB sails our goal was to create real game changers with our new wave board range.

What we had learned from the SUPER_HERO D/LAB development is that you need to work on all aspects to really make a decisive improvement.

Switching our board technology from the industry-standard semi custom technology to our exclusive FULL CUSTOM PRODUCTION marked the foundation for all the rest to come (see TECH AND SHAPE DETAILS below for details). Because this technology lifted our weight vs. strength ratio to a whole new level. And it finally allowed us to make every single prototype in the factory like we are doing with our sails since over 30 years. Because the best prototype is worth nothing if it can't be reproduced or feels different due to different materials, processes or weight.

To achieve a similar step up in the 3D design we decided to get our own CAD program written. Compared to the industry-standard Shape3D software our AI_BOARD_3D program is much more accurate and lets us perform even super complex shaping tasks like the brand-new SYNCED CURVES CONCEPT.

DESIGN GOALS >> SHAPE DETAILS

Our main goals were to create designs which have a maximum range of use and are easier (less exhausting) plus more radical on the wave.

Basically we wanted to create a more stable platform which is great for getting going and going over the white water. But at the same time the boards should turn even more radical when going down the line, which are opposing features you usually can't combine.

Here are the 3 major shape details our team has developed over the last 2,5 years (see TECH AND SHAPE DETAILS below for all other details):

STABLE YET RADICAL CONCEPT

Our wave boards are 1-2cm wider than most other boards. 

  • The increased width results in a more stable platform. This makes our wave boards as stable and energy-saving as a 5 liter bigger board while drifting/floating and going over white water. 
  • Most importantly the additional width leads to an increased outline curve. This improves the maneuverability which makes the board turn as radical as a 5 liter smaller board. 

The result is an unbeatable broad range of use.

3-STAGE ROCKER

Unlike the usual continuous rocker curve, our entire shape concept is based on a segmented rocker line. This accounts for the fact that the top- and bottom turn are two entirely different maneuvers. While you initiate the bottom turn more over your front foot (depending on the size of the wave) the top turn is only sailed over the back foot. This change in posture is the biggest challenge, especially when learning to wave ride - which becomes much easier with our 3-STAGE ROCKER.

  1. The straight rocker section in-between the front- and back straps creates a super stable sailing stance/platform so that you’re in perfect sync with your board going out or on the wave when switching between bottom- and top turn.
  2. The nose rocker starts just in front of the front straps which helps to engage the front part of the rail when leaning forward on the bottom turn.
  3. KICKSTARTER TAIL: The tail rocker behind the back strap remains very moderate until the last 4-5cm from the tail where it transforms into a progressive tail-kick. This tail-kick generates a perfect water release and in combination with the flat rocker line results in a kickstarter-like acceleration as soon as you push a bit with your back-foot. Plus the tail-kick obviously allows for super tight top turns when snapping back the board with your back-foot.

SYNCED CURVES CONCEPT (rocker><outline><rail)

Outline, rocker and rail shape are the 3 key elements that determine how a board feels and performs. In every rocker- and outline there are spots with more or less curvature. The same applies to the degree of rail curvature which changes considerably. To prevent the 3 curves from working "against" each other, the highest priority is to synchronize these curves. Means that in zones with an increased rocker curve, the outline curve is also increased plus the rails have an increased curvature and vice versa.

  • Increased outline curve, nose rocker and rail curvature around the mast track makes it easier to initiate the bottom turn (front foot initiated)
  • Increased outline curve, tail rocker and rail curvature behind the back strap for more radical top turns (back foot initiated)

To our knowledge this complex 3D task can only be performed by our own AI_BOARD_3D software.

We started testing this concept on existing boards and the improvements to each board were so overwhelming that we incorporated this design feature into all 2026 boards. 


Both ULTRA GRIP and GRIP are designed as World Cup Wave boards to satisfy the best of the best on all kind of conditions and spots around the globe. Here are the differences:

A. ULTRA GRIP

Focus ground swell >< windy Euro waves (not for onshore conditions)

Ideal for Maui, Capetown, Brittany, Cabo Verde, Ireland, Chile, Mauritius 

B. GRIP

Focus Euro waves >< logo-high ground swell

Ideal for Klitmøller, Canarias, North Sea, Kanaha


YOUR NEW ULTRA GRIP SLS DREAM MACHINES ARE READY AND WAITING FOR YOU TO TAKE YOUR RIDING TO THE NEXT LEVEL!

Delivery and Returns

Everything you need to know about shipping, delivery times and returning items purchased from The Kitesurf Centre.

We aim to make buying watersports equipment online simple, fast and stress-free, so you can spend less time waiting and more time on the water.

Dispatch and availability

Delivery depends on the stock location and the items in your order. We aim to dispatch items held in our shop within one working day, subject to payment authorisation and availability. Items marked as supplier stock are dispatched through our supplier and have a longer delivery time.

For preorders, backorders and made-to-order items, check the selected product's availability date or lead time before ordering. Standard delivery times apply after the item becomes available; express delivery does not shorten a preorder or production lead time. Contact us if you need equipment by a particular date.

UK delivery

Standard delivery is free on eligible orders of £49.99 or more. The services available for your items and address, their charges and estimated delivery dates are shown at checkout.

Items dispatched from our shop

  • Standard: 3–5 business days; £3.99 below £49.99, free from £49.99.
  • Express: 1–2 business days; £6.99 below £49.99, £4.99 from £49.99.
  • Next Working Day Delivery: £14.99 where offered at checkout. Orders for next-working-day delivery must be placed by 11am. Contact us to confirm availability if ordering later.

Duotone supplier stock and long-lead products

  • Standard supplier delivery: 7–10 business days; £4.99 below £49.99, free from £49.99.
  • Supplier-stock items do not qualify for our shop's express or next-day services.
  • Preorder dates and made-to-order lead times are additional to the delivery service and take precedence over a generic delivery estimate.

Business days are Monday to Friday, excluding public holidays. Handling time and the time of ordering can affect the dates shown at checkout. Items from different locations may arrive separately.

International delivery

International delivery charges depend on the destination, the items ordered and their dispatch location. Enter your delivery address at checkout to see the available service, price in your checkout currency and any estimated delivery dates. UK free-delivery thresholds do not apply to international orders.

Duotone supplier delivery services are 7–10 business days to the EU, 15–20 business days to the US, Canada, the Middle East and the other European destinations covered by those services, and 20–25 business days to Australia and New Zealand. Preorder and production lead times are additional. For other destinations, or where no delivery estimate is displayed, contact us before ordering if you need a confirmed timeframe.

Large or unusual deliveries

For oversized equipment or an unusual delivery destination, contact our shop before ordering so we can confirm the delivery arrangements and applicable charge. Use the shipping quote for your actual basket and address rather than a general weight-band estimate.

VAT Free Orders (Outside the UK)

Customers outside the UK automatically receive 20% VAT removal at checkout when selecting their delivery country.

Orders may be subject to local import duties or taxes depending on your country.

VAT-free orders are also available for BFPO and military forwarding addresses, please contact us before ordering.

Delivery Information & Responsibilities

  • Delivery times are based on working days (Mon–Fri)
  • Missed deliveries or uncollected parcels returned to us will incur a redelivery charge
  • If requesting delivery to a work address or neighbour, locating the parcel is the customer's responsibility
  • Always inspect packages before signing, sign as "damaged" if needed
  • Once signed for, we cannot claim for courier damage

Please check you have received all parcels before signing, as large orders may be split into multiple boxes.

Returns & Exchanges

We hope you love your new gear, but if something isn't right, we're here to help.

You can return unused items within 30 days from delivery provided they are:

  • In original condition
  • With packaging intact
  • With tags still attached

You can choose:

  • Exchange for a different size or product
  • Store credit
  • Refund

Returns form:
Download and include this with your return.

Return shipping costs are not refunded and must be paid again for replacement items (especially for international or large item orders).

Standard UK return shipping: £4.99

Your Consumer Rights

Under the Consumer Rights Act 2015, if goods are:

  • Faulty
  • Not fit for purpose
  • Not as described

You have 30 days to reject the goods and receive a full refund.

Important Return Notes

  • Returns are sent at the customer's risk and cost
  • We are not liable for lost or damaged return parcels
  • Items remain your responsibility until received by us
  • If a partial return drops your order below £49.99, original shipping charges may be applied

Used & Ex-Demo Equipment

All used and ex-demo equipment is carefully inspected before dispatch.

Kites are:

  • Inflated and pressure tested for 4 hours
  • Checked thoroughly before shipping

Any damage must be reported before use.
Once equipment has been used, we cannot accept responsibility for damage.

Need Help?

If you have any questions about delivery, returns or choosing the right equipment, our team is always happy to help.

📞 +44 (0)1797 724126
📧 shop@thekitesurfcentre.com

Finance

Buy now, pay later. PayPal Pay in 3 is the most reliable and simple way to split the costs of a purchase over a longer period without any extra costs. Fast and easy to set up, this is our suggestion for the best free and easy finance package

Just choose PayPal at checkout and go through the options available

PayPal Credit works like a conventional credit card but gives up to 4 months without any interest

Try it free

You can test the Duotone Ultra Grip (Quad) SLS (SB, incl. fin) completely free of charge at The Kitesurf Centre, an official Duotone Test Centre.

Come down, try it in real conditions and feel the performance before you buy — no commitment, no cost, just pure riding.

Try it free

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