Quantity   Component name
1 × Sabertooth 2x25 motor speed controller Bought from here: http://www.robotshop.com/uk/dimension-engineering-sabertooth-2x25.html
2 × 250W 24V electric motor Bought on eBay: http://www.ebay.co.uk/itm/401002854785
2 × E-scooter alloy back wheel
2 × E-scooter 80 tooth 6mm sprocket
2 × 6mm 25H Chain Chain length is 45 links/90 pins
2 × E-scooter free wheel bearing (welded up)
1 × 15mm thick plywood deck (made using 3x5mm sheets)
1 × IMU (Inertial measurement unit) Requires an accelerometer and gyro. The one I chose also contained a magnetic sensor http://www.hobbytronics.co.uk/sensors/imu/minimu-9-v3
1 × Microcontroller