Duke Sierra MM3 XDR Wheelset

Duke's aero gravel wheel, built on their own MadMax3 hubs with a SRAM XDR driver. The front rim is a wide Sierra Æra profile that blends cleanly into a 40 to 45mm tire, and the rear runs a deeper, narrower Æra profile. You get real aero gains on fast gravel without the wheel feeling twitchy when the wind picks up.

Two builds are in stock. The 56/48W (W48 front, 56 rear) is the fast one, for race days and flatter, faster courses. The 48/42W (W42 front, 48 rear) is a little lighter and more of an all-rounder for mixed terrain and longer climbs. Both use hooked, tubeless-ready Toray T1100 carbon rims with a 28mm internal width, hand-built by Duke.

• In stock: 56/48W (W48 front, 56 rear) and 48/42W (W42 front, 48 rear)
• Front: wide Æra profile, 43mm external, 28mm internal (W48 is 48mm deep, W42 is 42mm deep)
• Rear: Æra profile, 35.9mm external, 28mm internal (56 or 48mm deep)
• Rim weights: W48 460g, 56 410g, W42 420g, 48 390g
• Hooked, tubeless ready, best with 40 to 45mm tires
• Æra micro-relief rim surface, which Duke says cuts drag by up to 10% compared with a smooth rim
• 24-hole rims laced to Duke MadMax3 CL SP hubs: conical double-ratchet freehub, Center Lock rotors
• SRAM XDR driver
• 130kg max system weight

Shipping:

• We offer free US domestic shipping on all accessories, components, and clothing over $200.
• For complete bikes, we offer free US domestic shipping on orders over $1,500. There's a flat rate shipping charge of $150 for bikes under $1,500.
• Please allow 5-7 standard business days (Monday - Friday) for order processing and shipping. All orders are shipped Monday - Friday.
• Please email for eta's on special orders.
• For questions about expedited shipping and local delivery, please reach out to us at support@thebicyclestation.com.

Return Policy:
We at The Bicycle Station value your satisfaction. In case you’re not 100% satisfied with your purchase, we’ve outlined the following guidelines to help make your return a smooth and seamless experience.

Return Period:
You can return your purchase for up to 30 days from the date of purchase. Items must be returned in the same condition in which they were received, with all original materials included with the shipment. If components or accessories have been installed, they are not eligible for a return.

Return Shipping:
The customer is responsible for all return shipping charges.

Restocking Fee:
In general, we do not charge a restocking fee for returns. However, complete bikes, frames, and special order items are subject to a restocking fee. The amount of this fee will vary depending on the item and will be communicated to you at the time of the return request.

Final Sale Items:
All used products and products on sale are final sale. These items cannot be returned or exchanged. In addition, this includes any items which are custom painted.

How to Initiate a Return:
To initiate a return, please go to your account page if you need assistance contact our customer service team at support@thebicyclestation.com. Once your return is approved, we will provide you with the necessary information and instructions to proceed with the return.

Please note that the refund will be processed to the original payment method used, and may take up to 14 business days to reflect on your statement, depending on your payment provider.

We thank you for your understanding and cooperation. If you have any further questions or concerns regarding our return policy, please don’t hesitate to contact us.