Wolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our patent pending Drop-Stop technology. These beautifully machined 110 BCD asymmetric 4-bolt chainrings are optimized for your 1x CX / road / gravel drivetrain whether you run Dura Ace 9000, Ultegra 6800, 105 5800, or Tiagra 4700. They are also offset for the ideal 1x chainline. Fits 110 BCD Asymmetric 4-bolt cranks. Drop-Stop technology. On Wolf Tooth s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction. Alternating wide/narrow tooth pattern prevents chain derailment. Compatibility

Wolf Tooth Drop Stop 40T Chainring for 110 BCD - Alloy, Asymmetric, 1x Drivetrain

Reference Number: 4N94C3

Upgrade your road bike's performance with the Wolf Tooth Drop Stop Chainring 40T. Designed specifically for 110 BCD asymmetric cranksets, this high-quality aluminum chainring combines innovative engineering with durable materials, ensuring exceptional wear life, reliable chain retention, and superior mud clearance for demanding cycling conditions.

Materials & Durability:

Constructed from premium 7075-T6 aluminum, the Wolf Tooth Drop Stop Chainring offers outstanding strength-to-weight ratio, longevity, and resistance to corrosion. Its rugged alloy build guarantees sustained performance even after extensive miles on rugged terrain or challenging weather.

Performance & Engineering:

Featuring the patent-pending Drop-Stop asymmetrical tooth design, this chainring optimizes chain retention across 9, to 12-speed drivetrain setups. The asymmetrical teeth enhance mud clearance and reduce chain drops, providing a smoother, more secure ride whether you're racing or training. The 40T size strikes an excellent balance between speed and cadence, perfect for competitive road cycling or endurance rides.

Components & Technology:

Designed for compatibility with 4-arm cranksets featuring 110 BCD, this single chainring integrates seamlessly with Dura Ace 9000, Ultegra 6800, 105 5800, Tiagra 4703, and Tiagra 4700 components. It supports 1x drivetrain setups, facilitating simplified gear shifting and maintenance. Please note: 12-speed chains require Wolf Tooth's 12-speed-specific chainrings for optimal performance.

Style & Use Case:

Boasting a sleek black finish, this lightweight alloy chainring adds a professional aesthetic to your bike while providing high-performance benefits. Ideal for road racers, gravel adventurers, and bike commuters seeking enhanced chain security, mud clearance, and drivetrain efficiency. The Drop-Stop design excels in muddy, wet, or debris-laden conditions, making it a versatile upgrade for serious cyclists.

Innovative & Differentiating Features:

- Drop-Stop asymmetrical tooth design for increased chain retention and mud clearance

- Compatible with a broad range of 10-, 11-, and 12-speed chains (excluding some 12-speed chains which require specific rings)

- Slight modifications required for sizes 38T and larger with certain cranksets like Dura Ace 9100 and Ultegra 8000

- Use with clutch-style rear derailleurs recommended for optimal chain security

Enhance your bike's drivetrain with the Wolf Tooth Drop Stop Chainring 40T - engineered for durability, optimized for performance, and designed to keep you riding smoothly mile after mile.

  • Optimized for 110 BCD 4-bolt cranksets, the Wolf Tooth Drop Stop 40t Chainring features an innovative asymmetric tooth design that enhances chain retention, improves mud clearance, and prolongs wear life, making it ideal for demanding race and gravel riding.
  • Constructed from durable 7075-T6 aluminum, this lightweight, corrosion-resistant chainring offers long-lasting performance, ensuring reliable shifting and chain engagement across various riding conditions.
  • Designed for 1x drivetrains with 9, 10, 11, and 12-speed chains, the Drop Stop chainring delivers seamless compatibility with most road groups including Dura Ace, Ultegra, and 105, with specific modifications required for larger sizes and 's 12-speed chains.
  • Featuring a sleek black anodized finish, this -compatible chainring combines style with function, providing a clean, professional look that complements any road or gravel bike while offering superior mud clearance and chain retention.
  • Engineered with patent-pending Drop-Stop technology and engineered for performance, this chainring is ideal for riders seeking enhanced durability, efficient power transfer, and reliable gear shifting on challenging terrain or competitive racing setups.
Item Specifications
Ring Position/TypeChain Retaining Single Ring
Tooth Count40
Drivetrain Speeds9
Drivetrain Speeds10
Drivetrain Speeds11
Drivetrain Speeds12
Chainring BCD110 Asymmetric
ColorBlack
Defined ColorBlack

Why 365 Cycles?

365 Cycles is an Authorized Wolf Tooth Dealer, and we offer the Full Wolf Tooth Warranty!

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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.



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Company Details

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

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