VGEBY1 Bike Chain Ring 40T 42T Narrow Wide Chainring Single Crankset Bicycle Sprocket Wheel 40T?104BCD?

Features: HUMANIZED DESIGN--Ergonomic shape utilizes the stampede acting efficiently to create more stampede traction. PERFECT CHOOSE FOR CHAIN RING--The positive tooth corresponding chain tooth is wide, tooth corresponding negative chain is narrow. HIGH COMPATIBLE--Made of high quality aluminium alloy, suitable for most SHIMANO crankset, fit for AM/XC bicycle. MORE PRACTICAL--The narrow wide tooth design greatly increases the contact area with the chain, thus each chainwheel teeth can be fully inserted to achieve maximum grasp force. LONG SERVICE LIFE--Standard tooth design ensures optimal chain retention, increases service life and reduces friction and noise. Specifications: Condition: 100% Brand New Item Type: Chainring Material: Aluminium Alloy Color: Black Optional Style: 40T, 42T BCD: 104mm / 4.1inch Weight: Approx. 99-115g Package List: 1 * Bicycle Chainring