5 adjustable resistance levels for finding the perfect setting for your goals Magnetic resistance unit provides quiet and frictionless ride Resistance unit clutch knob to ensure optimum tire/roller engagement Linear resistance boosts workout intensity to match each pedal stroke and gear click Spring loaded skewer clamp for easy bike installation Leveling feet provide a stable platform even on uneven surfaces Includes handlebar remote shifter Magnetic BlackUPC/EAN/GTIN: 012527018581