Maximum load bearing:100kg The flywheel weight:20kg Color:red,green,yellow,white,blue. Packing size:1060*230*780mm Assemblage size:1030*580*1140mm Driving methods:belt drive,Ultra-quiet Braking manner:With cowhide brake system Alumium pedal,Mist and dip handle Pedal Dia:20mm Middle axis diameter:40mm Foot tube and adjustable tube are made of stainless steel The locking structure is brass,it's anti-rust.