Check the listing for details. MOJO Fixed Gear Chainring 48T - 110 BCD Track Fixie single speed 1/8" - BLACK. Color: Black, Condition: New. Listed at 17.99 USD. * High quality Alloy Chainring 48Tooth* 110mm BCD* CNC Machined, not stamped* 1/8" (3.18mm +/- .15mm) Nominal width* For use with 1/8" chains only* Manufactured to JIS standards.* COLOR: Black, smooth shiny finish GET THE RIGHT CHAINRING * What is your BCD? - Most cranks come in 3 common BCD (bolt circle diameter) sizes: 110mm, 130mm, and 144mm. MEASURE FIRST BEFORE YOU BUY!* 1/8" CHAINS ONLY - Will NOT work with multi-gear derailleur systems. For single-speed use with 1/8" chains. Check first before you buy, save time and headache. But if you make a mistake and buy the wrong BCD size, we will exchange a chainring for the correct size, if available, provided the item is still new and has not been used or mounted. Buyer pays exchange shipping. USA SELLER - DELIVERED IN DAYS, NOT WEEKS!Shipping - $4.00 - All 50 states, territories, Puerto Rico, APO FPO, Palau. Returns are on a case-by-case basis. We accept returns for 2 reasons: Defective item, or sent the wrong item. Purchase wisely. Ask us questions if you are unsure, we love to help.