Which if the best estimate for weight of a bicycle?

The best estimate for the weight of a bicycle depends on the type of bicycle and the materials used in its construction. Here are some general weight ranges for different types of bicycles:

1. Mountain bikes: 25 to 35 pounds (11 to 16 kilograms)

2. Road bikes: 15 to 25 pounds (7 to 11 kilograms)

3. Hybrid bikes: 20 to 30 pounds (9 to 14 kilograms)

4. Cruiser bikes: 30 to 40 pounds (14 to 18 kilograms)

5. Folding bikes: 20 to 30 pounds (9 to 14 kilograms)

6. Electric bikes: 40 to 60 pounds (18 to 27 kilograms)

7. Children's bikes: 10 to 20 pounds (4.5 to 9 kilograms)

These weight ranges are approximate and can vary depending on the specific model and components of the bicycle. For example, a high-end mountain bike made with lightweight carbon fiber materials might weigh less than a budget-friendly mountain bike made with heavier steel materials.