Model Number X4S. Part Number X4S. 【???????????? ???????????? ???????????? ?????????????????. This will be your perfect choice for indoor cycling training. 【???????????????? ???????????????????????????????????? ???????????????????????????????????? ????????????????????????????】① Unique dual solid flywheels combined with the belt drive system, this indoor bike creates smooth riding, and it is maintenance-unrestricted and near silent; ② Excellent resistance and urgent stop system, 6 stronger magnets to create magnetic resistance, and extra leather brake pad to make urgent stop safer, and won’t affect the magnetic resistance in the normal cycling workout.
