Lightweight Aero 1x chainrings for road and gravel . Shark Fin tooth shaping reduces chain noise on 1x mullet builds with MTB cassettes . Machined in San Diego, CA, from 7075 aluminum . SRAM 8-bolt Direct Mount fitment . Works with Flat Top and Eagle SRAM as well as 12 speed chains . Specifically designed to work with SRAM DUB bottom bracket bups . Please note that the Aero design may not work with T47 bottom bracketsItem Specifications: Oval/Round, Round, Teeth, 42, Color, Raw, Model Name, Aero Chainring, Ring Type, Single (Anti-Chain Drop), Mount, 8-Bolt DM 7mm Offset,

5Dev Aluminum Aero 42T Road & Gravel Chainring | 8-Bolt DUB Direct Mount

Reference Number: 5NR6YC

Upgrade your road and gravel cycling performance with the 5Dev Aluminum Aero Road Chainring, 42T, Raw. Designed for serious cyclists seeking lightweight efficiency, aerodynamic advantage, and reliable durability, this high-performance chainring is a must-have for your bike build.

Materials & Construction:

Crafted from aerospace-grade 7075 aluminum, renowned for its superior strength-to-weight ratio and corrosion resistance, the 5Dev Aero Chainring delivers durability without adding unnecessary weight. The raw finish not only offers an aggressive, minimalist aesthetic but also ensures corrosion resistance for long-lasting performance in all cycling conditions.

Performance & Engineering:

Engineered to optimize power transfer and improve aerodynamics, this single 42-tooth chainring features an innovative Aero design that reduces wind resistance and enhances speed. The Shark Fin tooth shaping minimizes chain noise and reduces chain drop during aggressive riding or Mullet setups, providing a smoother, quieter ride even under high torque. Perfect for road and gravel riders aiming for efficiency and reduced air drag.

Components & Technology:

The 8-bolt Direct Mount (DM) fitment with a 7mm offset ensures a secure, precise connection to your crankset, compatible with SRAM DUB bottom brackets. This chainring works seamlessly with both Flat Top and Eagle SRAM 12-speed chains, offering versatile compatibility for various drivetrain configurations. Please note, the Aero design may not be compatible with T47 bottom bracket systems.

Style & Use Case:

With its sleek Raw finish and streamlined Aero profile, this chainring complements the aesthetic of modern, performance-oriented bikes. Ideal for gravel racing, endurance road cycling, or Mullet builds combining MTB cassettes with road cranksets, it delivers versatile performance across multiple riding disciplines.

Innovative Features:

- Shark Fin tooth geometry for reduced chain noise and drop

- Lightweight construction from high-grade aluminum

- Aerodynamic design to maximize speed and efficiency

- Designed specifically for SRAM DUB bottom brackets and 12-speed chains

- Compatible with SRAM 8-bolt DM cranksets

Upgrade to the 5Dev Aluminum Aero Road Chainring and experience enhanced speed, reduced noise, and maximum durability on every ride. Whether you're attacking the mountain passes or cruising gravel trails, this 42T chainring is engineered to elevate your cycling performance and style.

  • Optimized for lightweight performance, the 5Dev Aluminum Aero Road Chainring is crafted from durable 7075 aluminum, ensuring strength and corrosion resistance for demanding road and gravel cycling conditions.
  • Engineered with Shark Fin tooth shaping, this 42T chainring reduces chain noise and enhances shifting efficiency on 1x mullet builds, providing smooth, quiet, and reliable drivetrain performance.
  • Designed for SRAM 8-bolt direct mount compatibility, it seamlessly integrates with SRAM DUB bottom brackets, Flat Top, Eagle SRAM, and Shimano 12-speed chains for versatile upgrade options and optimized drivetrain engagement.
  • With an aerodynamic raw finish, this single oval/round chainring offers an anti-chain drop design, perfect for riders seeking enhanced power transfer, reduced weight, and a sleek aesthetic for aggressive road and gravel riding.
  • Innovative features include optimized 7mm offset mount, engineered for precise fitment and minimal aerodynamic drag, making it an ideal choice for performance-focused cyclists seeking a high-tech upgrade for their bike.

Why 365 Cycles?

365 Cycles is an Authorized 5Dev Dealer, and we offer the Full 5Dev Warranty!

Fast Shipping!

Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!

365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



CNRG2337 .

Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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