MAGNETIC SPINNING BIKESSPECIFICATIONS & FEATURES:PRODUCT DIMENSION: 1370X536X1310MM;NET WEIGHT: 57KG;GROSS WEIGHT: 65KG;PACKING DIMENSION: 1250X960X280MM;PACKING: CARTON BOX;TRANSMISSION MODE: BELT;CENTRAL AXIS: 40MM;THE ADJUSTMENT PART IS MADE OF AVIATION ALUMINUM ALLOY;ADJUSTMENT RANGE OF HANDLE AND SEAT: 250MM.