Centrally and soon to be all over the city, Yellow Zebra Bikes offers bike rentals and guided bike tours, with optional helmets. Bike rentals cost 1,500 Ft for 1-5 hours or 4,000 for 24 hours. Guided tours may be your best option, setting you back 5,000 Ft for adults, 4,500 Ft for students with an ID card. The tour price includes the guide, a bike, optional helmets, baskets, and bungee cords. Just show up at the office before the tour leaves at 11am. In July and August, there is a second tour at 5:30pm.