Bicycle helmet, day cycling backpack (approx. 20 liters) with rain cover, comfortable sports shoes, if applicable cycling shoes, weather-appropriate and durable clothing in multi-layer principle, if applicable cycling jersey, if applicable cycling gloves, pump, bicycle tools, sun and rain protection, provisions and drinking water, drinking bottle and suitable holder, first aid kit, pocket knife, mobile phone, if applicable smartphone holder for the handlebar, if applicable headlamp and reflectors, map material
Spare battery!