Self-Generating Capability. Dual Sided Pedals with Ratcheting Strap. Single Stage Drive System. 30 Resistance Levels. 3-Piece Crank System. Power Source: Optional 110V, Self-Generating (with Emerge or Envision 9), 220V Option Available (with Envision + Compass) Cord Length: 10' / 3.0 M Drive System: Single Stage Drive System with Poly-V Belts Crank: 3-Piece Forged Steel Crank System with Sealed Bearings Resistance Source: Hybrid Self-Generating Brake Resistance Levels: 30 Frame Construction: Robotically Welded Heavy-Gauge Steel Pedals: Dual Sided and Weighted with Integrated Ratcheting Strap Seat: Ergonomic Seat with 15 Position Settings (Lever Under Seat) Handlebar Design: Multi-Position with Moisture Resistant Sleeves Contact Heart Rate Monitoring: Yes Wireless Heart Rate Monitoring: Polar® Compatible Asset Management: ECOFIT Water Bottle Holder: Yes Accessory Tray: Yes Product Dimensions: 44" L x 24" W x 59" H (111.76 cm x 60.96 cm x 149.86 cm Product Weight: 146 lbs / 66 kg Shipping Weight: 152 lbs / 69 kg Maximum User Weight: 400 lbs / 181 kg Step-Up Height: 18" / 45.72 cm Portability: 2 Front Transport Wheels