Our 20 plus years in the industry have taught us that no cyclist is the same.

Some prefer traditional wheel-on trainers, others only ride rollers, some exclusively train on direct drive trainers, and many deeply appreciate the convenience of an indoor-only bike. From our best-selling Fluid² to our line of smart trainers, we've got your indoor training needs covered.

What is an Indoor Bike Trainer?

An indoor bicycle trainer is a training accessory that turns your bike into a stationary bicycle.

Shopping for a trainer isn't easy to begin with — especially if you don't even know what a trainer is in the first place. We get it and we're here to help.

Often times when someone hears the word "trainer" they may picture someone who sits in a gym counting repetitions of dumbbell curls or perhaps a pair of running shoes. And while these are certainly accurate descriptions, our trainers are a device that turns your bike into a year-round exercise machine.

By attaching to the back of your bike, our trainers let you ride your favorite bike without going anywhere. You're literally spinning your wheels — in a very good way. If you're looking for a full-on, all wheels in motion type of experience then perhaps consider our bike rollers instead.

So if you are looking for a way to train indoors — without paying the monthly fee of a gym, being able to work out in the privacy of your own home, while you watch TV shows or listen to whatever music you want — there's a good chance we've got something for you.

A clarifying point: indoor trainers may also be referred to as a turbo or a turbo trainer. So if you're in the market for a turbo trainer, you're in the right place. Welcome.

Getting started with a Saris indoor bicycle trainer

Which Bike Trainer is Right for Me?

When in the market for a new indoor bike trainer, the most important question to ask yourself is: what are my goals? If you don't have any specific goals in mind, then perhaps ask yourself what you're looking for in a trainer.

Maybe it's the ability to sit, spin and catch up on Netflix. Maybe you're training for a race or have specific workouts in mind. Below is a quick rundown of our trainer profiles and their best uses.

H3/ H2 / Hammer

  • Direct drive and flywheel create a ride performance that's as realistic as it is fun.
  • Unparalleled bicycle compatibility – can be used with nearly every bike around.
  • Provides power feedback within +/-2% accuracy.
  • Seamlessly connects and responds to indoor cycling apps.

M2 and Magnus

  • For the cyclist looking to ride with a wheel-on trainer and a wide variety of training apps.
  • Dual ANT+ and Bluetooth smart compatibility.
  • Provides power feedback within +/-5% accuracy.
  • Seamlessly connects and responds to indoor cycling apps.

Mag+ and Mag

  • Ideal for those who want to sit and spin.
  • The perfect substitute for the giant, front-fanned stationary bikes of past.
  • Mag+ and Mag come with five adjustable difficulty levels.

Fluid and Fluid²

  • The faster you pedal the harder it gets — just like real life.
  • The Fluid² is our most popular indoor bike trainer.
  • Is tough enough to handle any workout you throw at it.


  • Quintessential for the track athlete — or any cyclist looking to improve stability.
  • Help riders of all kinds better their body dynamics.
  • Ideal for high cadence workouts and pre-race warm-ups.

Still can't decide?

Compare these trainers side-by-side with our indoor trainer comparison guide.
Of course you can always contact us or visit your local Saris dealer to find the trainer that's right for you.

What is meant by measuring power?

When we talk about measuring power output in the realm of cycling, we're talking about the amount of energy being used to power your ride. And just like the light bulbs in your house, cyclists use watts to measure power too. The higher the watts, the more power you're pumping through your pedals.

This measurement is a key training tool for many serious and amateur cyclists alike because you can compare apples to apples (or watts to watts) when you look at the numbers, unlike looking at your speed on a windy day compared to a calm day. Our line of smart trainers feature integrated power sensors for power accuracy.

Will my bike fit my indoor trainer?

Before we can answer that question, let's first start by figuring out the size of your wheel.

Perhaps you've heard those bike guru's rattle off numbers that sound more like battleship coordinates than something that goes on your bike. Things like 700c, 650b, 29er, or 26" — all of which are wheel sizes and can be found on the outside of the tire itself.

Here's a quick shortcut of what your wheel size would likely be based on the type of bike you've got:

Type of Bicycle Tire Size
Road, Triathlon, TT, Cyclocross, Gravel or Hybrid 27" or 700c
BMX or Recumbent 20" or 24"
Mountain 26", 27.5", 29" or 650b

*confirm the size of your tire by looking at the outside tire wall

Now going back to our first question of "will my bike fit my indoor trainer," the short answer is: probably. There are a couple of considerations to help you:

  • All of our trainers fit 26” mountain bike tires and 700c, provided the tire is 2.0” or less
  • For 20” or 24” wheels, you’ll need to choose a Classic Series trainer plus use our wheel adapter.
  • For bikes with dropouts up to 142mm, you’ll need to look at our Classic Series plus use our 142x12mm thru axle adapter.
  • Does your bike have a quick release or Thru Axle?
  • Our rollers are one-size-fits-all when it comes to wheel size.

What do I need to make it work?

There are four things you'll need before you can start your indoor training regimen:

  1. Your bicycle of choice.
  2. Your Saris indoor trainer of choice.
  3. The included quick release trainer skewer.
  4. A Saris trainer tire – or a low tread tire, like a tread-less racing tire.

Indoor Cycling Applications

No matter the time,weather or traffic, you can still get a great ride in with a indoor cycling application. Using an indoor trainer paired with training software, you can reap the benefits of a full workout and ride routes from all over the world, all while tracking your training data.

Looking to ride with an indoor cycling application?

Our indoor trainers are compatible with Zwift, Rouvy, TrainerRoad, and many more.
Head over to our Setup Guide to get started with the app of your choice.

Want to learn more?

Check out our Frequently Asked Questions watch our Instructional Videos or learn some jargon at our Cyclo-ssary.
To get a good picture of how to use indoor trainers, check out this 30-minute trainer session video.