DJC 144BCD Round Chainring Fixed Gear Fixie Track Bike 47T 49 51 53 55 57 59 61T Single Speed Chainwheel 1/2 * 1/8 144 Bcd (49T)

• Fit for: Fixed Gear/Track Bike(Single Speed Bike), it is not for 7-12 speed bike. it is for single speed bike only.
• Chain compatible:only for 1/2*1/8 chain, single speed chain.
• Size: 144BCD, Tooth: 47/49/51/53/55/57/58/59/60/61/62/63/64T
• High Strength Aluminum Alloy.Durable, CNC processSurface anodized treatment.Anti-corrosion and anti-rust,Higher hardness.
• Weight: 47T 107g/3.8oz, 51T 139g/4.9oz, 55T 177g/6.3oz, 59T 208g/7.3oz, 63T 197g/7oz, 64T 212g/7.5oz. Package content: 1pcs chainring

DJC 144BCD Round Chainring for Fixed Gear Track Bikes 47T 49 51 53 55 57 59 61 62 63 64T 144 BCD 1/2*1/8 Teeth Features Not for 7-12 speed bikes. For single speed bikes only. Material: Aluminum 7075-T651 Color: Black, Anodized Size: 144BCD Teeth: 47/49/51/53/55/57/59/61/62/63/64T Thickness: 4mm Chain Compatibility: 1/2*1/8 chain only Compatible Models: Fixed Gear/Track Bikes (Single Speed Bikes) Not for 7-12 speed bikes. For single speed bikes only. Not for 7-12 speed bikes. For single speed bikes only. Number of Teeth (T) Maximum Outer Diameter (mm) Weight (g) 47T, 107mm, 196g 49T, 121mm, 205g 51T, 139mm, 213g 53T, 158mm, 220g 55T, 177mm, 228g 57T, 197mm, 237g 59T, 208mm, 245g 61T, 184mm, 253g 63T, 197mm, 265g 64T, 212mm, 270g Package Contents 1 x Chainring