Saris H3 Direct Drive smart trainer

When it comes to indoor bike trainers, the most frequently asked question is: how quiet is it? Taking this to heart, our Madison, Wisconsin-based team put this query under the microscope and set a goal to build a trainer so quiet, that the only sound is that of your drive train.

The result? A direct drive smart trainer that touts a sound specification of 59 decibels at 20 mph. In other words, the H3 is five times quieter than previous generations, making it the quietest smart trainer to ever leave our doors.

Following the Saris direct drive smart trainer legacy, the H3 features the same reliability and durability as its predecessors. Each H3 is made from cast and machined aluminum sourced from America’s heartland. Encased inside are components meticulously calibrated to measure power, speed and cadence, as well as a precision-balanced flywheel - all built to handle 2000 watts and replicate a 20% climbing grade.

Tested to withstand heavy training, the H3’s internal cooling system will keep the electromagnetic resistance system working – and accurate – long after your legs have given out.

Noise level:59 decibels at 20 mph

Power measurement accuracy: +/- 2%

Maximum power output: 2000 watts at 20 mph

Simulates a 20% climbing grade

Fast response electromagnetic resistance

Measures speed, cadence and power – no external sensors needed

20 lb precision balanced flywheel

Integrated dual ANT+ FE-C and Bluetooth FTMS standards

Built-in front wheel block

Integrated carrying handle

Compatible with Shimano 8-11 speed cassettes

XD/XDR freehubs sold separately

Thru-axle compatible for rear hub widths of 142 mm or 148 mm.

Quick-release compatible for rear hub widths of 130 mm and 135 mm.

Compatible with a wide variety of devices and indoor cycling applications, including Rouvy, Zwift, TrainerRoad and many more.

Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2.

LED indicator lights communicate connectivity and more.

Direct drive design directly connects the bicycle to the resistance unit, eliminating tire wear.

Internal cooling technology ensures accurate ride data even during the hardest of workouts.

Folding legs provide widest footprint of direct drive indoor bicycle trainers on the market for added stability and easy storage.

Accessible and balanced handle allows for smooth, anyone-can-carry transit of the trainer.

Maximum weight (rider and bike): 300 lbs.

Cassette sold separately.

Zwift certified.

BKOOL certified.