Robot Chassis 4wd 4 motor

Features:
- Simple mechanical structure, easy for installation.
- Adopts 4 decelerate DC motors, ensuring flexbility and good direction.
- Large and stable Chassis, easy for expansion.
- speed test encoding disk.
- recommend use L293D 4 motors driver board and 4 Channel Infrared Detector Tracked Photoelectricity Sensor Obstacle Avoidance

Specfications:
- Voltage: DC3V DC5V DV6V
- Current:100ma 100ma 120ma
- speed deceleration ratio:48:1
- Tyre Diameter: 6.6cm
- size:70mm*22mm*18mm

Package includes:
- Car Chassis: as picture shown
- 4 x tire
- 4 x Gear motor
- 8 x sets of fastener
- speed measurement encoding disk:
- Some screws & nuts