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Wolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our Drop-Stop technology. Since their release, the uses for these rings has expanded beyond cyclocross to commuting, gravel riding, and even full on-road applications with the giant 52t rings. . . Fits 130 BCD 5 arm cranksets. 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 These rings are for use with 130 BCD 5 arm cranksets. Do NOT fit on the cranksets for DA 9000 / Ultegra 6800 Not compatible with Campy CX10/11. SRAM Exogram cranksets with inset nut must use stock fifth bolt + spacer(s). The Force CX1 bolt features a fifth bolt with 1x specific shoulder. This kit can be found online. 38T important note: The chain may contact the spider arm slightly when using the 38T chainring (see last photo in the product images). We recommend filing a small chamfer on the spider arm but you can also just install it and let the chain do the work. This is only an issue with the 38T as the 130 BCD was designed for 39T smallest ring. Stock 2x bolts will not work. You will need bolts like our 6mm bolts which are optimized for single ring mounting. This 1x chainring and can be mounted in either the inner or outer ring position of a double crankset but can not be used in a 2x setup. Chainline - The most common mounting is in the outer ring position because of chainstay clearance. The ring centerline is ~2mm from the ring's mounting face so they usually sit about 2mm closer to the frame than the stock big ring (depends on the stock ring) . Recommendations If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck. Related Products Chainring bolts - stock 2x bolts will not work. 6mm bolts are needed for single ring mounting. Tanpan - allows mountain bike rear derailleurs to be used with road shifters. RoadLink - allows for wide range cassettes to be used with road rear derailleurs. Tech Specs Weight: 38t 52g | 40t 60g | 42t 62g | 44t 79g | 52t 132gMaterial: 7075-T6 aluminumMade in the USA. . Patent and trademark information.40T Drop-Stop B
| Item Specifications | |
|---|---|
| Ring Position/Type | Chain Retaining Single Ring |
| Tooth Count | 40 |
| Drivetrain Speeds | 9 |
| Drivetrain Speeds | 10 |
| Drivetrain Speeds | 11 |
| Drivetrain Speeds | 12 |
| Chainring BCD | 130 |
| Color | Black |
| Defined Color | Black |
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.
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!
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.