With a more comfortable seat than a traditional road bike and 20 levels of smoothly adjustable magnetic resistance, the Endurance B2.5U puts you in control of your daily ride. You're free to adjust your workouts to suit your mood, challenge your endurance or maximize your cardio benefit.The Endurance B2.5U's advanced electronics provide you with the constant feedback you need to monitor your workout. Plus, with contact heart rate you'll ride smarter and more cardio-efficiently.20 levels of smoothly adjustable magnetic resistance, the Endurance B2.5R puts you in control of your daily ride. You're free to adjust your workouts to suit your mood, challenge your endurance or maximize your cardio benefit.The Endurance B2.5R's electronics provide you with the constant feedback you need to monitor your workout. Plus, with contact heart readout, you'll ride smarter and more cardio-efficiently.Heavy Gauge Welded Steel Construction. The Endurance B2.5R boasts a beautiful silver metallic coat