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Key Product FeaturesCDHpower Single Speed Crankset 44T 170mm Crankarms 110 BCD Crankset for Mountain Road Bike Fixed Gear Bicycle(Square Taper) (44T Sprocket) 1):Material:Aluminium 6061-T6; BCD:110mm; Pedal crankarms:170mm; 2):Burly and lightweight forged crankset for ultimate strength and reliability; These are intended to be used on single speed Mountain Road Bike Fixed Gear Bicycle 3):Compatible with 9/16 inch pedals; 1/2"*1/8" chain work well on this crankset 4):KIDLY NOTE:If your bike is 2" BB cup, pls use a bottom bracket converter(search bottom bracket conversion kit in our store) 5):Crankset w/ 44T Sprocket; Square Taper 6):Complete one set including left crankarm, right crankarm and chainring; 7):Net Weight: 772g FAQ Q: How many teeth on this crankset? A: 44T Q: What is the length on this arm? A: 170mm Q: Does this Crankset come with both crank arms or just the drive side? A: Come with both Q: What pedal size does this Crankset work with? 9/16 or 1/2? A: 9/16" Q: What is the BCD of this Crankset? A: 110mm Q: What chain width does it use? A: Standard 1/2" X 1/8" Q: Does this work on a square taper Crankset? A: It is a crankset made for square taper bottom brackets Q: What size bottom bracket should be used for a single speed bike? A: Shell Width is 68 mm, Spindle Length depends on the frame you are using - if you can get it from the manufacturers website, that would be the best bet Q: Does this Crankset come with a bottom bracket? A: No Thank you for visiting this listing, if you have any questions, please feel free to ask and we will do best to get back to you promptly!Products usually shipped on the second business day and you will receive message of tracking ID.CDHPOWER is registered officially in year 2012 and started business in year 2008, we can provide engine kits, high performance spare parts of engine, motorized bicycle and spare parts of bike.