chainring 104 bcd 32t 34t 36t 38t narrow wide single chain ring with 4 pieces sprocket bolts for road bikes, mountain bikes, bmx mtb bike (black, 38t) boao <br>chainring 104 bcd 32t 34t 36t 38t narrow wide single chain ring with 4 pieces sprocket bolts for road bikes, mountain bikes, bmx mtb bike, black <br> <br>durable quality: <br>this bicycle chainring is made of a sturdy t6 alloy structure, the circular width design improves climbing performance and reduces weight by removing chain guides. <br> <br>narrow wide tooth design: <br>ensures chain retention, effectively protects the frame from scratches, extends wear life, and reduces friction and noise; the surface is easy to clean <br> <br>104 bcd chain ring: <br>model: 32t, 34t, 36t, 38t <br>it is standard 104 bcd, single speed 1 x 7, 1 x 8, 1 x 9, 1 x 10, 1 x 11, 1 x 12. <br>you can install it on road bikes, mountain bikes, etc.. <br>104 bcd cranks ensure the tooth profile and the final chain retention force, plate thickness of 4 mm to ensure no bending. <br> <br>specification: <br>color: black <br>size: <br>bcd: 104 mm <br>round diameter: <br> -32t/135 mm <br> -34t/144 mm <br> -36t/152 mm <br> -38t/160 mm <br> <br>package includes: <br>1 x single chainring <br>4 x sprocket bolts <br> <br>notice: <br>please make sure the crank size is bcd 104 mm before purchase. the more teeth you have, the faster you ride. <br>small objects, please stay away from children under 3 years old.