Wayfair via Sears offers the Stamina InStride 360 Degree Bike, model no. 15-0176, for $34.49 plus $4.99 for shipping. That's the lowest total price we could find by $3. It features a steel frame, hook and loop straps, and adjustable straps.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.