Commercial S15i Exercise Bike

The NordicTrack Commercial S15i brings studio-style cycling home: adjustable incline and decline, a 15-inch touchscreen and Bluetooth keep adaptive iFIT training in one place.
Buy On Amazon
NordicTrack Commercial S15i black indoor exercise bike with a 15-inch touchscreen in a bright home gym
Three-quarter overview of the black NordicTrack Commercial S15i exercise bike alone in a bright home gym
Design and engineering

Built to move the way your ride does

The 15-inch touchscreen puts guided sessions right in front of you, while incline and decline shift the angle of effort so different muscles take the work. Bluetooth keeps audio connected ride after ride.

Rides that adapt as your fitness grows

Because the bike changes its own incline and decline, you stop fiddling with settings and stay at the right challenge. Sessions keep varying, so your progress keeps moving forward.
Adult rider pedalling the black NordicTrack Commercial S15i as the bike sits at a climbing incline in a home gym
Benefit 01

Challenge that changes

Automatic incline and decline reshape the ride mid-session, so harder work arrives when your training calls for it.
Close three-quarter view of the 15-inch touchscreen on the S15i console with an adult rider's hands on the handlebars
Benefit 02

Guidance you can follow

The 15-inch screen holds the class, metrics and the plan in one place, cutting setup time before you start pedalling.
Adult in athletic wear cycling smoothly on the S15i in a sunlit living room corner
Benefit 03

Low-impact cardio work

Smooth resistance and a supported seated position give you cardio that is easier on knees and hips than road running.
Adult rider stepping off the S15i with a towel after finishing a home workout session
Benefit 04

Progress you can see

Watching resistance, pace and ride length on screen turns a solid week into progress you can actually measure.
Adult wearing wireless headphones seated on the S15i during a guided ride at home
Benefit 05

Connected audio rides

Bluetooth links compatible headphones or devices, so trainer cues stay clear and motivating in any room you ride in.
Adult hand adjusting the saddle height lever on the NordicTrack Commercial S15i in a spare room
Benefit 06

One bike, many riders

An adjustable fit and scalable resistance let partners at different fitness levels share the same bike comfortably.
Who it suits

Where the S15i fits your routine

Morning cardio at home

Ride before work with no studio commute; the screen and resistance are ready within minutes of sitting down.

Low-impact training days

Use it between running sessions to keep weekly cardio volume up while giving joints a break from impact.

Small-space home gyms

A compact seated footprint makes it workable in a spare room or a shared corner of a living space.

Beginner-friendly riding

New riders can follow guided sessions at their own pace while the bike sets resistance as confidence builds.

Evening recovery rides

A gentler resistance session after a long day keeps a habit streak alive when harder workouts are not appealing.

Shared household use

Riders at different fitness levels can take turns, adjusting saddle position and resistance to suit each person.

Get set up for your first ride

Take a few minutes before you clip in: set the saddle so your knee keeps a slight bend, connect your Bluetooth audio, then choose a guided session and let the bike handle incline and decline for you.
Adult hand setting the saddle height on the NordicTrack Commercial S15i seat post

Set your seat height

Set the saddle so your knee keeps a slight bend at the bottom of each pedal stroke.
Plain wireless headphones resting on the console of the S15i beside the handlebars

Connect your audio

Pair your Bluetooth headphones first, so the trainer’s cues stay clear in any room.
Adult rider's hand reaching toward the 15-inch touchscreen on the S15i console before a ride

Choose a guided ride

Open a session on the 15-inch screen and let the class set the pace and resistance.
Low side view of the S15i frame and base tilted during an automatic incline change

Let incline adjust

Trust the automatic incline and decline, or step in and override it whenever you want.
Owner experiences

What riders say about the S15i

Across 110 reviews averaging 3.5 out of 5 stars, owners point to the screen and the shifting incline as standouts, while some flag limited new-condition availability. Here is the texture behind that score.
I ride four mornings a week and the 15-inch screen is what keeps me showing up. The class sets the incline and I simply pedal, so the workout feels guided rather than guessed. My legs are noticeably stronger after two months.
Decorative customer review avatar icon 1
Maya R.Screen-led rides keep her consistent
The incline and decline are the real story with this bike. Climbing sections engage my glutes in a way flat riding never did, and the downhill segments let me recover without stopping the session. Assembly took me under an hour.
Decorative customer review avatar icon 2
D. WhitfieldTerrain simulation is the standout
Coming back after a long break, I liked that I could start gentle. Bluetooth audio made the trainer easy to follow, and I have not had the knee soreness I get from outdoor running on the same weekly volume.
Decorative customer review avatar icon 3
Jordan P.A gentle return after a long break
Quiet and stable in our spare room, and the saddle adjustment suits my partner as well. I would have liked clearer information on long-term parts support, but for daily cardio it has been dependable so far.
Decorative customer review avatar icon 4
Elena S.Solid build, some support doubts
I compared studio bikes mainly on the screen and the terrain simulation. The automatic changes make sessions feel shorter than they are, and I finish rides less bored than I ever did on a fixed-resistance trainer.
Decorative customer review avatar icon 5
Chris D.Better than flat riding for boredom
Before you decide

Common questions about the S15i

NordicTrack Commercial S15i exercise bike with a folded towel resting on the saddle in a spare room
The listing notes that this item is no longer available in new condition, so buying it new through this seller may not be possible. Check with NordicTrack for current stock, refurbished options, or newer models that keep the incline and decline approach.
They change the angle of your effort. Incline adds climbing resistance that recruits glutes and calves, while decline eases the load to simulate descents, giving varied muscle engagement without changing your riding position.
The bike carries a 15-inch touchscreen sized so session video, ride metrics and resistance data stay readable from a normal riding distance, which keeps you seated and balanced instead of leaning forward to read it.
Bluetooth lets you pair compatible headphones or devices, so trainer audio stays private and clear. Check that your accessories support Bluetooth pairing before you depend on them mid-ride.
Yes, if you build up gradually. The supported seated position and scalable resistance let beginners start gently, and the sessions on screen remove the guesswork about what to do next on each ride.
The adjustable saddle and scalable resistance suit riders of different heights and fitness levels in one household. Reset the seat position before each ride and let every rider pick a session matched to their level.
Keep exploring

More on building your home training setup

NordicTrack AirGlide 14i elliptical in a bright home gym, three-quarter front view

NordicTrack Airglide 14i Elliptical

The AirGlide 14i is NordicTrack’s newest elliptical series, built around trainer-led iFIT sessions streamed to a 14-inch Smart HD touchscreen. With 26 resistance levels, incline and decline, it keeps low-impact cardio engaging.

NordicTrack Commercial 1250 treadmill standing in a bright home gym with light oak flooring

NordicTrack Commercial 1250 Treadmill

The Commercial 1250 brings gym-grade variety home: a -3% decline to 12% incline, 12 MPH top speed, and adaptive iFIT coaching that changes with your level, all on a frame that folds away when the run is done.