frame IS STEEL;

RIM IS ALLOY  One-pieces ;

TIRE IS CHAOYANG 20"*3.0"

SADDLE IS PVC, BLACK,RED AND SILVER COLOR;

CHAIN IS STEEL ,KMC C410 ;

PEDAL IS PP, WITH BALL;

ROTATOR IS STL/PVC;

GRIP IS RUBBER, BLACK COLOR;

PEGS ARE STEEL.