Gravel bikes are more durable than road bikes and mountain bikes. As compared to road bikes, gravel bikes come with wider tires or gravel tires. These offer relaxed geometry and endurance than road bikes. You can’t take road bikes to gravel trails and roads. A road bike is suitable to ride on common roads. A gravel road bike is a fusion of a cyclocross bike and a road bike. You can ride these types of bikes on crisscrossed and mellow single tracks, tarmac, crushed cobblestones and gravel.