Bike 26 \"21 speed BMW integrated wheel variable-speed mountain bike factory direct selling

Three knife circle adult mountain bike, double shock absorption, aluminum alloy support mountain bike, mountain bike 26 \"24 speed aluminum alloy frame 38 pipe iron shoulder fork Locate the plating tower wheel Positioning chain chuck type shaft housing Seal axial Imitate shimano 65-8 one to one Copy the simano 35 one to one Copy the pre - shishinomano 30 

Material: aluminum alloy packaging: 80% of 1 piece assembly 

Color: black and white, black and blue, black and yellow, black and gray