In recent years, China has maintained bike market grew by leaps and bounds. Data show that in 1998 the national production of only 54,000, to 1.58 million in 2002, to the 2003 Chinese electric bicycle production reached more than 400 million, ranks first in the world from 1998 to 2004 the average annual growth rate of more than 120% . 2009 production reached 23.69 million large electric cargo tricycle, an increase of 8.2%. 1998 compared to an increase of 437 times, the pace of development is quite amazing. These statistics electric bicycle production year average annual growth rate of about 174%. Use of electric vehicles and maintenance methods 1, first adjust the saddle and handlebar height to make it in the safest and most comfortable position, especially in the saddle height, the best in riding needs to stop the process when both feet simultaneously the ground. 2, the test is valid and reliable electric brakes cargo tricycle, and tested in the rear brake, power is cut off, if the motor has stopped working. 3. Check the battery: When the power is turned on electric cargo tricycle price, watch battery condition on the display, especially after a long hold time use, is especially important. Also should also check the electric horn, lights and other traffic safety related components are effective in 4 view rotating parts:! Front and rear wheels and pedals, cranks, sprockets, chains, flywheel is functioning properly, whether the foreign body collision. 5. Check the tire pressure is appropriate. Electric cargo tricycle accessories, White Dragon machinery (certified), electric cargo tricycle provided by White Dragon Machinery Co., Ltd. Shandong. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) Shandong Linyi, bicycles, tricycles and accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the White Dragon machinery leadership with the staff warmly welcome all inquiries negotiations to create a better future for White Dragon machinery.