Specifications: For SRAM direct mount compatible cranks The combination of the thick part (wide) and the thin part (narrow) firmly engages the chain, reducing the possibility of the chain falling off.This chainring has a 3mm offset boost standard. , Number of teeth: 28T, 30T, 32T, 34T Material: CNC cutting 7075 aluminum alloy, called extra-super duralumin, an aluminum alloy with high strength Suitable for 9-speed to 12-speed chains
Product model number: 305851700 Color: Black Size: 28T Battery included or built-in: No Packing size: 18.7 x 16.8 x 1 cm; 100 g
