Here are the main tutorials for maintenance operations, basic repairs and C4 accessories.

Wheel, tyres, tubes and belt

Remove and install the rear wheel

(for rear punctures, you'll need to take off the rear wheel. The tube replacement is the same as in Puncture - Front wheel)

​Puncture - Front wheel

(Same as on Cowboy 2 and Cowboy 3, except you need an Allen 8 key)

Tighten the belt

Accessories

Install the kickstand
Install the rear rack

Install the trailer adaptor

Brakes
Brake Pads - alignment
Brake Pads - Replacement
Brake Discs - Replacement
Brake Discs - Cleaning

Wheel, tyres, tubes and belt
​Rear wheel - Replacement
​Puncture - Front wheel
​Puncture - Rear wheel
Tighten the belt

Brakes
Brake Pads - Replace (scroll down)

Wheel, tyres and tubes
​Rear wheel - Replacement
​Puncture - Front Wheel
​Puncture - Rear Wheel
Belt - Adjustment
Belt - Replacement