What can be the reason for a motorized bicycle skidding on bends?

Your answer is fully correct. A motorized bicycle can skid on bends due to heavy braking, wet or icy road surfaces, and the presence of sand or loose chippings. In German traffic rules, these factors reduce tire grip and stability, increasing the risk of a skid, especially when turning. Heavy braking shifts weight and can cause the tires to lose traction. Wet or icy surfaces are slippery, making it harder for tires to maintain road contact. Loose materials like sand or chippings also reduce friction, causing the wheels to slip. Recognizing these conditions helps riders adjust their speed and braking to stay safe in bends.