The Bike Chainring With Quality Material Can Keep The Surface Smooth, Bright Color, Fade, It Can Be As A Homecoming, Christmas, Thanksgiving Or New Year Gift To Your Husband, Wife, Boyfriend, Girlfriend, Kid. Chainring Is Made Of Alloy Structure, Lightweight But Sturdy, With Positive And Negative Teeth Designed To Prevent The Chain From Dropping, And Can Lose About Weight. The high quality material provides unbreakable durability yet still extremely lightweight. Increasing The Contact Area With The Chain Greatly, So That Each Of The Teeth Can Be Fully Inserted Into The Chain, Increase The Grasp Force, Make You No Longer Worried About The Chain Dorpped, Easy To Pass Through The Bumpy Road. Easy to install, fitting directly onto the bicycle’s bottom bracket, this is an excellent replacement part for bicycle repairs, compatible with city bikes, folding bikes, mountain bikes, e-bikes, cargo bikes and folding bikes, Manufacturer: JFGCTYHXY