CycleOps' Fluid2 Winter Trainer Kit gives you everything you need to get strong for spring. The trainer, with its smooth "Power Band" technology, allows for distinct resistance-level changes without reaching to a lever on the unit. The large flywheel delivers a realistic road feel, too. Resistance varies automatically depending on your cadence from less than 20 watts to over 725 watts, more than enough range for any cyclist and any workout. You also get 2 climbing blocks so you you can train hills, a Trainer Mat and a Bike Thong.