GARENDE Bike Chain 104BCD Mountain Bike Chain for DH Trail Bike Modification 38T.The positive and negative tooth design reduces wear and tear, making it less likely for the chain to fall off. This ensures a smooth and efficient ride every time.Made from quality aluminum alloy, this bike chainring is built to last, providing you with long term performance and reliability.This chainring is suitable for standard 104mm BCD cranks, please carefully confirm your crank BCD and number of specifications before purchasing.Ideal for replacing old chainrings or converting multi speed chainrings to single speed. Chainring bolts are NOT included.The narrow wide chainring tooth increases chain retention, no chain drop, reduces friction and noise.Bike Chain Single Chain 104mm BCD. Single Chain Round Sprocket Aluminum Alloy. Detachable Cycling Mountain Road Bike Chain. Chainwheel Repair Parts Cycle Single Chain. Replacement Chain Accessories Parts.