Profile Design 52 ASC Carbon Extensions Side View Pair
Profile Design 52 ASC Carbon Extensions Top View Pair
Profile Design 52 ASC Carbon Extensions Side View
Profile Design 52 ASC Carbon Extensions Inner Side View
52 ASC Carbon Extensions

52 ASC Carbon Extensions

Regular price£299.99
/
Tax included. Shipping calculated at checkout.

Extension Length
  • In stock, ready to ship
  • Backordered, shipping soon


Shipping policy

FREE Standard UK Delivery over £50

• FREE delivery applies to standard orders of £50 and over, delivered to UK mainland addresses.
• Standard delivery is £5.99 for orders under £50.
• Estimated delivery date for standard delivery is 2-4 working days.
• Exceptions apply to items being delivered to non-UK mainland locations and remote areas.
• Deliveries take place between 8am and 8pm, Monday to Saturday.

Standard Northern Ireland Delivery - £5.99

• We are unable to offer our normal FREE delivery over £50 to Northern Ireland. Standard delivery will incur a £5.99 delivery charge.
• Next day delivery is unavailable to Northern Ireland.

Delivery to Remote Areas - Standard

Unfortunately, if you live in a Northern Ireland, highlands, island or rural postcode, due to distance delivery may take longer than 7 working days and incur additional charges, however we will do our very best to get your order to you as quickly as possible. We are also unable to offer next day delivery to these locations:

Channel Islands

Standard delivery will incur a £9.99 delivery charge.

Estimated delivery date for standard delivery is 3-17 working days.



Isle of Man
Standard delivery will incur a £9.99 delivery charge.

Estimated delivery date for standard delivery is 3-17 working days.


Republic Of Ireland
Temporarily Unavailable

Due to the UK leaving the EU, we unfortunately cannot accept orders to Republic Of Ireland at the moment. New rules in terms of customs will be put into place shortly and we are working hard with our shipping partners to find the best possible solution for us to deliver your orders. Please don’t hesitate to contact customercare@madison.co.uk if you have any questions.

We are currently experiencing delays with our Standard delivery services, especially those to offshore destinations (such as Jersey, Guernsey) if you have any queries, please contact customercare@madison.co.uk

 

 

 

Refund policy

Returns & Refunds – Profile Design UK

Need to return something? No problem. Here’s everything you need to know.


✅ Key Info at a Glance

  • You have 30 days from delivery or collection to return an item for a refund.

  • Refunds go back to your original payment method and can take up to 10 working days to appear.

  • Return shipping charges apply (details below).


🔁 How to Return Your Item(s)

  1. Repackage the item(s) securely with original labels and packaging intact.

  2. If your parcel is under 10kg and doesn’t exceed 50 x 50 x 60 cm, apply the pre-paid returns label (DPD or Royal Mail) to the package.

🧾 Don’t forget to keep your proof of postage until your return is confirmed.


🚚 Larger or Heavier Items?

  • Unused bulky or high-value items: We can arrange return shipping using our couriers.

    • £15 for bulky items

  • Contact us to book a collection.


⚠️ Important Reminders

  • Returned items must be unused, in original condition and packaging, with labels attached.

  • Items returned in an unsuitable condition may be sent back to you.

  • Initial shipping fees are non-refundable.

  • In the case of partial returns, we reserve the right to void any promotional discounts.


🚫 Product Exclusions

Some items can’t be returned unless faulty or incorrectly supplied:

  • Gift vouchers (if used or registered)


🔄 Exchanges

We don’t offer direct exchanges.
If you need a different size, colour or model, please place a new order and return the original item for a refund.


🔍 What if Something’s Wrong?

🛠️ Faulty or Incorrect Items

Received the wrong item or something’s faulty?
Contact us within 7 days of delivery so we can fix the issue quickly.

💷 Refund Issues

If you think your refund amount is incorrect, please contact our customer service team with your order number and details.

📦 Haven’t Heard About Your Return?

It may take up to 10 working days from the day after you send your return for it to be processed.
We’ll email you once it's been received and refunded.
If that time has passed, contact us with your proof of postage.


📬 Need More Help?


This Returns Policy does not affect your statutory rights.

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Overview

When designing these extensions we wanted to utilize carbon fibers' natural ability to be shaped into an aerodynamic form while still providing a good amount of strength and rigidity, hence ASC stands for Aero Shaped Carbon.

The 52 ASC follows on from our hugely popular first Aero Shaped Carbon extension (The 43 ASC) with increased grip angle.

The front section (from the wrist fin forward) has been angled up by 9 degrees to give a 52 degree grip angle and comfortable wrist support.

Additionally the grip has been lengthened by 20mm to provide more comfort for users of SRAM Blips. The grip can be trimmed to suit.

The premise of the ASC range is to move the extension sideways to share its frontal aera with riders arm, while maintaining a 22.2mm mounting aera to be compatible with the majority of standard aerobars.

The 52 ASC will be a strong contender for the title of 'most comfortable aero extensions' at least for standard aerobar brackets.

The fit by the wrist area is designed to smooth airflow over the arm and to increase contact area which will provide some extra comfort and to give you more control over your bike. The shape was optimized using CFD to minimize drag without sacrificing strength.

    Who is it for?

    The 52 ASC is intended to optimize the aerodynamics of your existing bars but pairs exceptionally well with either the Race+ or Ergo+ armrest. Giving you the ideal supportive position which again will help you be relaxed while riding and as we mentioned… the key to speed is relaxation.

    The extensions will fit in any aerobar that is designed for 22.2mm.  So can be used by any rider wishing to improve the comfort of their aerobar grips.

    Accessory Options: Sold Separately

    Need a computer mount? ASC Extensions is to be paired with a ASC computer mount.

    Tech Specs
    • Extension Length: 340mm or 400mm
    • Min Length: 340mm: 230mm or 400mm: 290mm (from the front of clamp)
    • Extension Angle: 52 Degrees
    • Extension Rise: 340mm: 127mm or 400mm: 137mm (bottom to top)
    • Extension Offset: 16mm total
    • Outer Diameter: 22.2mm
    • Inner Diameter: 18.8mm
    • Shifter Compatibility: Electronic or Mechanical
    • Includes: Sold as a Pair (1 Right and 1 Left Extension)
    • Construction: Carbon
    • Colors: Matte Black
    • Weight: 340mm: 190g or 400mm: 228g /pair
    Manual

    52 ASC Extensions Installation Instructions

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