You'll find the best prices on Quantum fitness treadmill in Fitness Equipment when you shop online at bizrate. Do all your comparison shopping for Quantum Fitness, Horizon Hobby and ProForm Fitness Equipment in one place. Compare models and see which online Sports Equipment & Outdoor Gear stores have the best merchant ratings. Make an informed decision on Quantum fitness treadmill Fitness Equipment before you buy. bizrate will help you with all of your holiday gift shopping needs. Buy Quantum Fitness 3.1E Home Treadmill or Quantum Fitness Q-3.1M Treadmill - FREE Inside Delivery!.