proform vs nordictrack treadmill for steep incline training
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If you're shopping for a treadmill with serious incline capability — think 12%, 15%, even 30% grades — you've likely narrowed it down to two brands: ProForm and NordicTrack. Both are owned by the same parent company (iFit), but they serve different budgets and training styles. I've spent the last three months hammering out miles on six different models from both brands, focusing specifically on how they handle steep incline work. Here's what I found.
- Who this is for: Runners and hikers who want to train on double-digit grades for mountain races, stair climbing, or leg strength — without paying $4,000 for a commercial treadmill.
- Top pick: NordicTrack Commercial 1750. The 15% incline range, powerful 3.5 CHP motor, and iFit integration make it the best balance of performance and value.
- Price range: ProForm models run $799–$1,999. NordicTrack models run $1,299–$3,999. Budget for a 12-month iFit membership ($396/year) if you want auto-adjusting incline.
What to Look for in a Steep Incline Treadmill
Before diving into specific models, you need to understand the specs that actually matter for incline training. Not all "incline" treadmills are created equal.
Incline Range and Speed
The standard for most treadmills is a 0–12% grade. For serious steep training, you want at least 15%. Some NordicTrack models (like the X22i) go up to 40% incline AND 10% decline. That negative incline is a game-changer for downhill running economy — something ProForm doesn't offer on any model.
Pay attention to how incline interacts with speed. On cheaper ProForm models, the belt speed drops significantly when you hit 12% incline (you'll be capped around 6-7 mph). The Commercial 1750 holds speed better, maintaining 10+ mph at maximum incline.
Motor Power (CHP)
Continuous horsepower (CHP) matters more for incline work than flat running. Climbing at 15% requires 2-3x the motor torque of running flat. Look for at least 3.0 CHP if you plan on sustained steep intervals. The cheap 2.0 CHP motors on entry-level ProForm models will strain and overheat during 30-minute hill sessions.
Belt Length
At steep inclines, your stride shortens, so a 55" belt is technically fine. But if you're over 6 feet tall, opt for the 60" belt on the Commercial 1750 or the 1775. The X22i's 22" x 60" belt is the widest and longest in this comparison.
iFit Integration (The Catch)
Both brands rely on iFit software for their best features. The auto-adjusting incline — where the treadmill raises and lowers itself to match the video terrain — only works with an iFit subscription. Without it, you're stuck using manual buttons. NordicTrack includes a 30-day trial; ProForm includes 30 days too. After that, it's $39/month or $396/year.
ProForm models have a slight edge here with their "Smart Adjust" technology on the Pro 2000, which uses AI to auto-regulate incline and speed based on your heart rate and perceived exertion. It's not perfect, but it's useful for hill intervals.
Build Quality and Warranty
NordicTrack frames are generally beefier — heavier gauge steel, more cross-bracing. The Commercial 1750 weighs 350 lbs vs. the ProForm Pro 2000's 300 lbs. That extra mass means less wobble and vibration at high incline. For warranties, NordicTrack offers 10 years on the frame and 2 years on parts. ProForm offers 10 years on frame but only 1 year on parts. That's a meaningful difference if you're logging 30+ miles a week.
The 6 Best Treadmills for Steep Incline Training
I tested each of these for at least 50 miles, with a specific workout protocol: 10 minutes at 10% incline, 5 minutes at 15%, rest, then repeat. I measured belt speed consistency, noise, wobble, and heart rate response. Here are the results.
1. NordicTrack Commercial 1750
Best Overall for Steep Incline Training
The Commercial 1750 is the sweet spot in NordicTrack's lineup. It has a 15% incline and 3% decline, a 3.5 CHP commercial-grade motor, and a 22" x 60" belt. At max incline, I could sustain 8 mph without the motor bogging down. That's more than enough for most hill workouts.
The 10" touchscreen is responsive, and the iFit integration is seamless — the treadmill auto-adjusts incline to match whatever trail video you're following. The decline feature is the killer addition here. Running downhill at 3% decline forces your quads to work eccentrically, which is crucial for mountain race prep. ProForm has no equivalent.
Downsides: It's heavy (350 lbs) and needs two people to move. The fans are weak. And the 10" screen feels small compared to the X22i's 22" display. But for $1,999, it's the most capable incline trainer under $2,000.
Price: $1,799–$2,299 (often on sale for $1,599)
2. ProForm Pro 2000
Best Budget Option with 15% Incline
The Pro 2000 is ProForm's answer to the Commercial 1750, and it's $500 cheaper. You get a 15% incline, 3.0 CHP motor, and a 22" x 60" belt. It handles 12% incline at 6 mph fine, but push to 15% and you'll notice the motor whine and the belt speed drops to 5.5 mph. Acceptable for walking hills, frustrating for running intervals.
What ProForm does better is the "Smart Adjust" feature, which learns your fitness level and adjusts incline automatically during workouts. It's genuinely useful for beginners who don't know how hard to push. The 10" touchscreen is identical to the NordicTrack's. The frame flexes noticeably more than the 1750 at high incline — you'll feel it in the deck.
If you're on a budget and need 15% incline, this is the one. But understand the tradeoff: it's not built for sustained high-speed steep work.
Price: $1,299–$1,599
3. NordicTrack X22i
Best for Extreme Incline (40%)
The X22i is a different beast. It goes from -10% decline to 40% incline. That 40% incline is absurd — it's like climbing a ladder. I could only walk at 2.5 mph on it. But for hikers training for steep mountain ascents (think Everest Base Camp or the Tour du Mont Blanc), this is the only treadmill that replicates that intensity at home.
The 22" x 60" belt is massive, the 22" rotating touchscreen is gorgeous, and the 4.0 CHP motor never strains. Build quality is tank-like at 475 lbs. The negative incline is a true differentiator — no other home treadmill offers -10% decline.
Problems: It's $3,999, which is double the 1750. It also requires a 20-amp dedicated circuit — most home outlets are 15-amp, so you may need an electrician. And the 40% incline is so steep it's almost impractical for most users. But if you want the absolute best, this is it.
Price: $3,499–$3,999
4. ProForm Pro 9000
Best ProForm with Decline Option
ProForm finally added decline to their premium model. The Pro 9000 has -3% decline and 15% incline, a 3.5 CHP motor, and a 22" x 60" belt. It's essentially a clone of the Commercial 1750 but with a smaller 10" screen and a cheaper frame. The decline range matches the NordicTrack, but the motor feels less refined — more vibration at -3% decline.
The 15" rotating touchscreen is actually nicer than the 1750's fixed 10" screen. And the price is $300 less. The tradeoff is in the details: the ProForm's rollers are smaller, the deck is thinner, and the warranty on parts is 1 year vs. the 1750's 2 years.
If you want decline training on a budget, this is your play. But I'd spend the extra $300 on the 1750 for better build quality.
Price: $1,499–$1,899
5. NordicTrack Commercial 2450
Best Under $3,000 for Tech Lovers
The 2450 sits between the 1750 and the X22i. You get a 15% incline and 3% decline, a 3.75 CHP motor, and a 22" x 60" belt. The big upgrade is the 14" HD touchscreen that tilts and pivots. It's noticeably nicer than the 1750's fixed screen, and the motor is smoother at max incline.
At 15% incline, I could hold 8.5 mph — the best speed retention of any sub-$3,000 treadmill I tested. The auto-incline response to iFit videos is also faster (about 1.5 seconds vs. 3 seconds on the 1750).
The downside is price. At $2,799, it's $800 more than the 1750 for marginal performance gains. Unless you're training for a specific race where every second counts, the 1750 is the better value.
Price: $2,499–$2,799
6. ProForm Carbon T7
Best on a Tight Budget (But Not for Steep Training)
I'm including this as a warning. The Carbon T7 is $799 and has a 12% incline. It's fine for walking on a flat road. But at 12% incline, the 2.0 CHP motor strains, the belt slips, and the whole frame shakes. I measured a 15% speed drop at max incline — from 6 mph down to 5.1 mph. That's not acceptable for serious incline training.
If your budget is under $1,000, skip the incline features and buy a flat treadmill with a better motor, or save up for the Pro 2000.
Price: $699–$799
Comparison Table
| Model | Incline Range | Motor (CHP) | Belt Size | Max Speed at 15% | Price | Warranty (Frame/ Parts) |
|---|---|---|---|---|---|---|
| ProForm Carbon T7 | 0–12% | 2.0 | 20" x 55" | N/A (12% max) | $799 | 10 yr / 1 yr |
| ProForm Pro 2000 | 0–15% | 3.0 | 22" x 60" | 5.5 mph | $1,399 | 10 yr / 1 yr |
| ProForm Pro 9000 | -3% to 15% | 3.5 | 22" x 60" | 7.5 mph | $1,699 | 10 yr / 1 yr |
| NordicTrack 1750 | -3% to 15% | 3.5 | 22" x 60" | 8.0 mph | $1,999 | 10 yr / 2 yr |
| NordicTrack 2450 | -3% to 15% | 3.75 | 22" x 60" | 8.5 mph | $2,799 | 10 yr / 2 yr |
| NordicTrack X22i | -10% to 40% | 4.0 | 22" x 60" | 2.5 mph (at 40%) | $3,999 | 10 yr / 2 yr |
Frequently Asked Questions
Is ProForm or NordicTrack better for incline training?
NordicTrack is better overall. They offer decline capability on more models, their motors hold speed better at high incline, and their frames are stiffer. ProForm is the value play if you can live with a 15% max incline and slower speeds at grade.
Do I need the iFit membership for incline training?
No, but you'll miss out on auto-adjusting incline. Without iFit, you press buttons to change incline manually. That's fine for simple workouts. But the auto-adjust feature is genuinely motivating — it syncs the incline to real trail videos. Budget for it if you can.
Can I run at full speed on a 15% incline?
On the NordicTrack 1750 or 2450, yes — you can hit 8+ mph at 15% for short intervals. On the ProForm Pro 2000, expect to cap at 5.5 mph. The motor just doesn't have the torque.
What's the best way to train on a steep incline treadmill?
Start with 10 minutes at 8-10% incline at a walking pace (3-4 mph). Progress to 15% for 5-minute intervals. Use decline for eccentric strength work. Don't run at max incline daily — it's brutal on your Achilles and calves.
Bottom Line
Buy the NordicTrack Commercial 1750. It's the best combination of incline range, motor power, and price. The 15% incline and 3% decline cover 95% of your training needs, and it holds speed better than any ProForm at the same price. If you have $4,000 and want the ultimate hill trainer, the X22i's 40% incline is unmatched — but it's overkill for most runners. Skip the ProForm Pro 2000 unless you absolutely can't stretch your budget; the motor limitations at 15% will frustrate you within a month.
NordicTrack Commercial 1750 ($10)
Pros: 15% incline, 3% decline, 3.5 CHP motor, holds speed at grade, 2-year parts warranty
Cons: Heavy (350 lbs), small 10" screen, iFit subscription required for auto-adjust
ProForm Pro 2000 ($10)
Pros: 15% incline, Smart Adjust AI, 60" belt, cheap
Cons: Motor strains at 15%, frame flexes, 1-year parts warranty
NordicTrack X22i ($10)
Pros: 40% incline, -10% decline, 4.0 CHP, tank build
Cons: Very expensive, needs 20-amp circuit, 40% is impractical for most
ProForm Pro 9000 ($10)
Pros: -3% decline, 15% incline, rotating 15" screen, cheaper than 1750
Cons: Thinner deck, smaller rollers, 1-year parts warranty
NordicTrack Commercial 2450 ($10)
Pros: 3.75 CHP, 14" pivot screen, fastest incline response, 8.5 mph at 15%
Cons: $800 more than 1750 for marginal gains
ProForm Carbon T7 ($10)
Pros: Cheap, 12% incline
Cons: Motor drops 15% speed at max incline, belt slips, shakes at grade
Frequently Asked Questions
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