The way points of this bicycle route:
All down hill to the river.
Bike path. North to Szentendre and South into Town. Flat all the way.
Very popular stretch along river. Canoe and Kayak clubs.Rental possible. Loads of Cafes and Riverside Restaurants. Very busy on weekends.
Easy Ride, Lots of restaurants and cafes to enjoy. About an hour and a half leisurely ride. Old Serbian town, now an artist and artisan hang out. Churches, artist and loads of trinket shops. If you don't fancy the ride back you can get the HEV (light urban railway) back to Budapest. Bikes allowed.