CycleOps Fluid 2 Cycling Power Training Kit Upgrade to the FluidTraining Kit #9905to receive 2 climbing blocks, a training mat and a sweat guard - just add your bike and get started. Fluid is the best-selling trainer in the USA. Fluid resistance unit provides a quiet and consistent ride. Noise level at 20 mph is super quiet 64-68 decibels. Made in Madison, WI, USA Lifetime warranty Includes: 2 Climbing Blocks, Trainer Mat, and Bike Thong Self-cooling mechanisms, including a patented fan design, keeping the unit performing better and longer Fits 26", 27", 700c, and 29 x 2.25" or 20 - 24" with optional adapter (WT7026) sold separately PowerTuned larger flywheel for improved road-like feel