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H3 Plus Direct Drive Smart Trainer

5 out of 5 stars
2 Reviews



Why We Like The Saris H3 Plus Direct Drive Smart Trainer

With the Saris H3 Plus Direct Drive Smart Trainer, riding inside our pain cave during the winter months is quieter, smoother, and more fun than ever before. This 20lb precision-balanced flywheel creates realistic inertia, handles up to 2000 watts at 20mph, and even simulates a 20% climbing grade to keep up with our heavy training program. But most importantly, with a sound specification of just 59 decibels at 20mph, we can hear our TV or music without blasting the volume and annoying our families. 


  • The quietest smart trainer in the Saris lineup at 59 decibels at 20mph
  • Features a 20lb precision-balanced flywheel that creates realistic inertia
  • Compatible with 8 to 12-speed SRAM/Shimano cassettes
  • Built-in sensors include speed, cadence, and power
  • Measures power up to 2000w at 20mph with a +/- 2% accuracy
  • Simulate a climbing grade of up to 20% for added difficulty
  • Compatible with a variety of devices and applications, such as Zwift
  • Features an internal cooling system to avoid overheating
  • Item #SRS1WWS
fast-response electromagnetic
integrated dual ANT+ FE-C and Bluetooth
H3 Plus Direct Drive Smart Trainer, integrated front stabilizing block, disc brake spacer, 8-11 Speed SRAM/Shimano Freehub (pre-installed and 12 speed compatible), trainer power supply, cable connector, trainer axle end caps (130mm non-drive side quick release end cap (pre-installed), 135mm non-drive side quick release end cap, 130/135mm drive side end cap (pre-installed), 142mm non-drive side thru axle end cap, 148mm non-drive side thru axle end cap, 142/148mm drive side end cap)
Manufacturer Warranty
limited lifetime
training, road cycling

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
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5 Stars - 2 reviews

What do you think about this product?


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5 out of 5 stars

February 6, 2024

Forever user, and will stay that way.

I bought one of the early model (Hammer) trainers on which this is based. I'm still using it 6 years later, with only expected maintenance and it rocks! When I do need/want to modernize, for sure I will get a H3 (or 4 or 5). These things are durable, accurate and the one time I needed customer support - they were great.


Originally reviewed on saris.com

5 out of 5 stars

January 30, 2024

Exactly what we needed

Been riding this trainer for 2 weeks and it's such a huge jump from my old trainer. My son and I share the trainer and the bike that is attached to it. 12 speed is a must because now I am too fat to climb anything and he still gets many usable gears. This trainer is very responsive. The slightest increase in gradient results in increased resistance. You better shift early when you see the steep stuff coming. Extremely quiet. I wax my chains and still the H3 is quieter than the bike. Which is perfect because I decided to move my setup onto our 3 seasons porch. The barn has been too cold for me to workout in it. I am very happy with this purchase. I think it was money well spent.

Bryon S

Originally reviewed on saris.com