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Bicycle Cassette Cog 1/2x1/8" 17t Silver Nickel SS Fixie Track Cog USA Shipper:) Range 1/2x1/8"17tNickel plated ID: 475904 2019 eBay Shine Awards Platinum Winner, 2018 Shine Awards top 3 charity runner up! We are a bike shop in Madison, WI, USA. Our sales have provided funding to give away over 13,000 bikes, divert 1000 tons from the landfill, and teach repair skills to over 7000 people. Free transportation makes a huge difference in people's lives: when I was a homeless teen and got a free bike, it radically changed my life, leading to a business degree and small business success. We have an extensive collection of vintage bicycles and parts, and are happy to do custom builds, modifications, or parts packages. We would love to find the part or bicycle of your dreams! Listing Policies: 1. All orders are insured! If you receive a package with any damage, Take multiple photographs of the packageTake multiple photographs of the product in the packageTake multiple Photographs from different angles of any damage to the product.Without photos, we cannot file a claim or process a return/refund!!2. Please carefully review the photos and information provided before buying! If you have any questions or concerns, CONTACT US directly on eBay or at our number, found in our eBay Store. 3. If you have ANY concerns with an order, please CONTACT US and we will promptly resolve your concerns. 4. We ship same day and use expedited services. Delivery time is usually 2-4 business days. Nearly all boxes are custom made to reduce risk of shipping damage. 5. Contact us for international shipping pricing before bidding!