Tech Specs:

Noise level: 69 decibels at 20 mph
Resistance Unit: Fluid, creates a quiet and consistent ride
Resistance Curve: Progressive, provides widest resistance range and road-like feel
Maximum Weight (rider and bike): 300 lb.

Design:

Wheel-On: Connects to rear wheel of bike, no need to remove wheel or disassemble bike
Trainer Frame: Foldable Classic frame with spring loaded, bolt-action lever
Resistance Knob: Clutch knob, clicks like a gas cap to indicate correct roller-to-tire tension
Roller: Alloy, precision-machined alloy resistance roller reduces tire wear and slippage
Leveling Feet: Yes, for easy adjustment on uneven surfaces
Cooling System: External, self-cooling mechanisms, including patented fan design, keep unit performing better, longer
Thru Axle Adapter: Sold separately for 142x12mm and 148x12mm bikes
Flywheel: Precision-balanced to create road-like feel
Compatible with indoor cycling apps when paired with your favorite speed or cadence sensor

Bike Compatibility:

Steel quick release skewer included for common road and mountain bike frames
Thru Axle Adapter: Sold separately for 142x12mm and 148x12mm bikes
Three settings for rear dropout spacing:
120mm
130mm
135mm
2" resistance unit roller compatible with the following wheels and tire widths:
650b
700c
27.5", up to 2.0" wide
29", up to 1.5" wide and without tread
The Fluid2 is not compatible with the following wheel diameters and tire widths:
650c
29" with tread and/or wider than 1.5"
26"

FYI:

Some assembly required
Trainer Tire: Recommended, not included
Magnetless speed or cadence sensor sold separately
Formerly branded as the CycleOps Fluid2 Trainer