... Size: 20" *1.75Color: RedOEM/ODM: YesSpecifications1. power supply : electric 2.battery: lithium battery 3.motor: 240wgear 4.max speed: 25 ... old parts for free(Anthropogenic causes not covered under warranty).2: Frame,fork,handlebar,rear fork,shock absorber, if there ... the instructions of the use, maintenance and adjustments caused failure.2: Damage caused by self-repair, and modification.3: Failure ...