The rear end of the vehicle should be installed with a tow bar attachment device. It should ensure that the combination and disengagement are safe and reliable, easy to operate, and should be equipped with an effective mechanism to prevent unhooking, and a mechanical locking mechanism with two hook positions for choice. The driver can operate the towing device next to the driver's seat, or there can be other people outside the vehicle to operate the towing device. It is fully guaranteed that the driver can directly and clearly visualize the rear hitch status when operating the towing device from the driver's seat. Diameter of tow bar connecting pin: 38-47mm, set up to prevent the pin from running up and down to protect the device, and can meet the impact force of the full load mass. TYLTD300 Luggage Tractor (Electric) Parameters Overall length mm: 3200 Overall width mm : 1400 Overall height mm : 2000 Wheelbase mm : 1450 Total mass kg : 4000 Front axle load capacity kg : 1530 Rear axle load capacity kg: 2470 Max. travel speed (unladen/laden) km/h: 25/11 Maximum hook pull kN: 25 Rated hook pull kN: 12 Rated towing weight kg: 25000 Climbing degree (unladen) %: 35 Battery rating: IP67 Factory: No.2 Hang Kong Road High-tech zone, Jianhu county, Yancheng City, Jiangsu Province, P.R.China Shanghai Office: Floor 6th, Bld 36, No.1218 Huateng Road, Qingpu District Shanghai, P.R.China Tel: +86 21 5049 6088 / +86 400 9980 919 Mobile: +86 137 6133 5725 (As WeChat) +86 189 6407 9542 E_ mail: malie@jstianyi.com.cn joinsun@jstianyi.com.cn airport.gse@jstianyi.com.cn Website: www.tianyi-gse.com