NordicTrack Commercial 2450 review

Fourteen miles per hour, a minus 3 to 12 percent incline range, and an iFIT subscription that is not optional.

The verdict: Fourteen miles per hour is the specification that matters here: it is a 4 minute 17 mile pace, and it is faster than most home treadmills will go, which makes this one of the few that a genuinely fast runner can use for intervals. Buy it if you run fast or want decline training. Skip it if you do not, because the 1750 costs five hundred dollars less and runs at 12 mph, which covers most runners on most days.

Best Treadmill for Fast Intervals

NordicTrack Commercial 2450 Treadmill with iFIT

~$2,499

A treadmill with speeds to 14 mph, a minus 3 to 12 percent incline and decline range and a 24 inch tilting and pivoting touchscreen, requiring an iFIT Pro Membership at $39 per month for connected content.

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Specifications

Spec	Detail
Top speed	0 to 14 mph
Incline	12 percent incline to minus 3 percent decline
Screen	24 inch touchscreen that tilts and pivots
Membership	iFIT Pro at $39 per month for all iFIT content and connected features
Off treadmill	Screen pivots for yoga and strength classes

Specifications above come from NordicTrack's published specifications. Treat pricing as approximate, since Amazon pricing moves.

What it does well

A 14 mph top speed is genuinely useful. At 12 mph the belt tops out at a 5 minute mile, which a fast runner will exceed during strides and short intervals.
Decline to minus 3 percent is rare on a home treadmill and is the only way to train the eccentric loading of downhill running, which is what wrecks quadriceps in hilly races.
A pivoting 24 inch screen means strength and mobility work happens on the same subscription, which is how a treadmill stops being a single purpose object.
The iFIT membership is ten dollars a month cheaper than Peloton's, which over five years is six hundred dollars.

Where it falls short

The membership is required for the connected features, so like Peloton this is a subscription with hardware attached rather than a treadmill you buy once.
It is large and heavy, and a treadmill this size needs a dedicated space with clearance behind it.
Automatic incline and decline changes driven by iFIT trainers are motivating and are not the same as a structured plan, so a runner with a coach may not use most of it.
Belt and deck maintenance is real on any treadmill and skipping it is what kills them early.

What owners report

Published owner reports are positive on the running surface, the cushioning and the speed range, and the decline feature draws specific praise from runners training for hilly races. The screen and iFIT content are generally well received.

The criticisms are the familiar ones for connected treadmills: subscription dependence, assembly, and the space required. Reports from runners who wanted a treadmill rather than a platform consistently suggest the 1750 or a simpler machine, which is fair.

Who it suits

Runners who need speeds above 12 mph for intervals and strides.
Anyone training for a race with significant descent, where decline training matters.
Households that will use the off treadmill content on the same membership.

Who should skip it

Runners who never exceed a 5 minute mile, where the 1750 saves five hundred dollars.
Anyone unwilling to pay $39 a month.
Small rooms, since this is a large machine that needs clearance.

Alternatives worth considering

The One Most Runners Should Buy

NordicTrack Commercial 1750 Treadmill with iFIT

~$1,999

Five hundred dollars less with the same minus 3 to 12 percent incline range, a 16 inch screen and a 12 mph top speed. Unless you regularly run faster than a 5 minute mile, nothing here is a downgrade.

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Better Classes

Peloton Treadmill, cross training tread for running, walking and hiking

~$3,295

Eight hundred dollars more and a ten dollar per month higher subscription, for the stronger class library and instructors. Worth it only if the classes are what actually gets you on the belt.

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Common questions

How fast is 14 mph on a treadmill?

A 4 minute 17 second mile, or roughly 2 minutes 40 per kilometre. Very few home treadmills reach it, and it is the specification that separates this from the 1750. If your fastest intervals are slower than a 5 minute mile, 12 mph is enough. Our treadmill pace calculator converts between belt speed and pace.

Is decline training useful?

Yes, and it is under appreciated. Downhill running loads the quadriceps eccentrically, which is what causes the deep soreness after a hilly race, and it is the one thing you cannot train on a flat belt. A minus 3 percent decline is a genuine training capability rather than a marketing bullet.

Do I need the iFIT subscription?

For the connected content and automatic incline control, yes. The treadmill will run manually without it. NordicTrack requires the $39 per month Pro Membership for all iFIT content and connected features, and that should be in your total cost calculation.

2450 or 1750?

Speed and screen size. The 2450 runs to 14 mph with a 24 inch screen; the 1750 runs to 12 mph with a 16 inch screen, for five hundred dollars less. Both have the same incline and decline range, which is the more important specification for most training.

What incline should I set for outdoor equivalence?

One to two percent is the usual convention to approximate the effort of running outdoors without wind resistance, and the research supporting it applies more at faster paces than at slow ones. Our treadmill pace calculator handles the conversion.

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This review draws on published specifications, manufacturer figures and the consensus of verified owner reviews. We have not tested this product ourselves, and we say so rather than implying otherwise. As an Amazon Associate we earn from qualifying purchases.