Renting a bike in Istanbul can be a great option for those looking for an environmentally friendly and cost-effective way to explore the city. There are several bike rental companies in Istanbul that offer a wide range of bikes to choose from, including city bikes, mountain bikes, and electric bikes.

Depending on where you will ride it, bikes can be dangerous in İstanbul. If you plan to ride it by the Bosphorus, where there are special bike lanes, it is a perfect idea to rent a bike. However, keep in mind that you may need to ride among the traffic at some point if you plan to use the bike as a transportation tool.

For your safety, be sure to use a helmet and other safety equipment at all times. Wear bright-colored clothes, especially at night, to be visible. Also, keep in mind that İstanbul is a city situated on hills, therefore you may need the stamina to climb high, or opt for an electric bike to help you while riding uphill.

Finally, make sure to download an app like Strava or use Google Maps to find bike-friendly routes and roads for maximum safety and pleasure.