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CardioTested

The best treadmills with incline

Written by The CardioTested test teamUpdated November 5, 2026

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The NordicTrack Commercial 1750 is the incline treadmill we'd pick for most people: it runs from 3% decline to 12% incline, and with an iFIT subscription it changes the grade for you during a workout. If you'd rather skip the subscription, the Sole F80 goes to 15% and every button works on its own.

  1. Best overall
    NordicTrack Commercial 1750
    4.2
    from $1,999
    Check price
  2. Best without a subscription
    Sole F80
    4.5
    from $1,599
    Check price
  3. Best for downhill training
    Bowflex Treadmill 10
    4.5
    from $1,499
    Check price
  4. Best on a budget
    NordicTrack T Series 10
    4.0
    from $1,199
    Check price
  5. Best iFIT for less
    ProForm Pro 2000
    4.2
    from $1,799
    Check price
  6. Best big screen
    NordicTrack Commercial 2450
    4.3
    from $2,499
    Check price

What we looked for

  • Top incline of 10% or more
  • Decline, where it's offered
  • An incline motor that doesn't drown out a conversation
  • A deck that stays level side to side at the top setting
How we rate

For most home buyers, incline matters more than top speed. A brisk walk up a steep grade raises your heart rate without the pounding of a run, which is why the 12-3-30 routine caught on. For hiking-style workouts, the Bowflex Treadmill 22 reaches 20% and the NordicTrack X16 goes to 40% with 6% decline. We'll check each machine's top grade with a digital level once it's in our test room, because the number on the box isn't always what the deck reaches.

Our picks, in detail

Best overallNordicTrack
A woman jogging on a treadmill in a wood-floored home room with a window and a lamp
Belt
22 x 60 in
Motor
3.5 CHP
Max user
300 lb
Floor space
80 × 38 in, folds

NordicTrack Commercial 1750

4.2Our rating · from specs
$1,999 to $2,499
Typical price

With iFIT, workouts that move the incline and decline for you make it easy to keep showing up. Without it, you're paying for a big screen you can't cast to.

Best for

  • Anyone who'll keep paying for iFIT
  • Trail runners who want decline
  • Households that want trainer-led classes on the machine

Skip it if

  • Anyone who dislikes subscriptions
  • Users over 300 lb
  • Tight budgets: the Sole F80 does the running for $600 less at list
Best without a subscriptionSole
A woman walking on a Sole F80 treadmill beside floor-to-ceiling windows
Belt
22 x 60 in
Motor
3.5 HP DC
Max user
350 lb
Floor space
82 × 37 in, folds

Sole F80

4.5Our rating · from specs
$1,599 to $1,899
Typical price

A 22-inch belt, a 3.5 HP motor and a 350 lb frame designed to stay steady at speed, for less than most machines with a screen you'd end up ignoring.

Best for

  • Homes where one person runs and another walks
  • Runners up to about 6 ft 2 in
  • Rooms where you'll fold the deck between sessions

Skip it if

  • Rooms with less than 7 ft 6 in of clear length
  • Anyone who wants streaming classes on the console
  • Upstairs rooms where foot strikes carry
Best iFIT for lessProForm
A treadmill with a touchscreen console
Belt
20 x 60 in
Motor
3.5 CHP
Max user
300 lb
Floor space
77 × 36 in, folds

ProForm Pro 2000

4.2Our rating · from specs
$1,799 to $2,299
Typical price

ProForm's answer to the Commercial 1750: decline, a 10-inch screen and the same parent company.

Product photos are representative stock images, not the exact models, until our own test photos replace them.

Compare them side by side

Prices are typical ranges, not today's. Tap a column heading to sort.

Model
NordicTrack Commercial 1750NordicTrack · 4.2/5$1,999–2,499-3 to 12%22 x 60 in3.5 CHP300 lbNot yet tested
Sole F80Sole · 4.5/5$1,599–1,89915%22 x 60 in3.5 HP DC350 lbNot yet tested
Bowflex Treadmill 10Bowflex · 4.5/5$1,499–1,999-5 to 15%22 x 60 in3.5 CHP400 lbNot yet tested
NordicTrack T Series 10NordicTrack · 4.0/5$1,199–1,49910%20 x 60 in3.0 CHP300 lbNot yet tested
ProForm Pro 2000ProForm · 4.2/5$1,799–2,299-3 to 12%20 x 60 in3.5 CHP300 lbNot yet tested
NordicTrack Commercial 2450NordicTrack · 4.3/5$2,499–2,999-3 to 15%22 x 60 in3.6 CHP300 lbNot yet tested
Bowflex Treadmill 22Bowflex · 4.4/5$2,299–2,999-5 to 20%22 x 60 in4.0 CHP400 lbNot yet tested
NordicTrack X16NordicTrack · 4.3/5$2,999–3,499-6 to 40%22 x 60 in4.25 CHP300 lbNot yet tested

Tap a column to sort. Ratings come from published specs until we bench test a machine; specs are the manufacturer's unless a review says we measured them. Noise shows once we've measured that machine.

Frequently asked questions

Is 15% incline enough?

For walking workouts, yes. Most people can't keep a natural stride much past 12% for long anyway. The 20% and 40% machines, like the Bowflex Treadmill 22 and NordicTrack X16, feel closer to a stair climber, and they're mostly worth it if hiking is your sport.

Does incline affect noise?

A little. The drive motor works harder on a grade at the same speed, so expect a slightly louder hum when you're walking uphill. The incline motor is its own noise, a hum that lasts the few seconds it takes the deck to rise or drop.