The Cowboy 4 classic has a ‘classic’ riding position, where the handlebar is more or less at the same level as the saddle. This gives you a 30-60° angle to the ground when riding the bike, it's an athletic and speedy riding position which really makes you feel like you are beating traffic. This model is optimized for riders between 170-195 cm tall.
The Cowboy 4 ST has a ‘city-trekking’ riding position, where the handlebar is positioned higher and closer to the saddle. That way you can sit more upright, at a 60-80° angle to the ground. This will improve your overall riding comfort while keeping a dynamic position and great overview of your surroundings. The step-through frame also makes it easier to get on and off the bike. This model is optimized for riders between 160-190 cm tall.
You will be able to adapt the saddle height easily with the 'allen key' and the instructions manual you will receive together with the bike.