The Spirit Fitness CB900 Commercial Fitness Bike expounds on three critical areas – durability, comfort & performance. It is a perfect addition to a club, corporate fitness/recreation center, school or hotel because it’s stout design will withstand hours of consistent use. The needle bearings that encompass the pedals & flywheel axle, industrial grade Hutchinson PK poly-V belt, & our three piece crank work synergistically to create the perfect formula for durability & performance. The adjustments of the handlebars & seat in two directions along with SPD dual pedal design, & easy to maneuver "L” adjustment handles provide a comfortable fit for any size rider. The premium ISIS bottom bracket cartridge features ten splines that ensure greater surface area contact, a sturdier connection, & less maintenance than a traditional square joint. This bottom bracket cartridge is used on high end bicycles. These attributes ensure top performance for the life of the product.