I'm glad I got a self-powered treadmill with a curved running surface. It's a better workout. And no motor to wear out.

Also, since I won't be sprinting, the CT550 is. more than adequate for me. And especially since it weighs 181 pounds vs 308 for the more $$ one. And it has a wider running surface.

If you are looking for a treadmill for under your desk, this one is it. I don’t use the handlebars and it fits nicely under my standing desk. It takes a few days to really get the hang of balancing and walking but after that smooth sailing. Customer service is BEYOND AAA+++. From start to finish Brant helped me with any question I had and response time was SUPER quick. You won’t have to wait three days for an answer here. I waited to do my review, I have had my treadmill for a year now. I still love it and walk daily. It rolls on carpet like butter. I haven’t had to do any maintenance on it. Worth the money. Just buy it already.

I had a very old Schwinn Air Dyne from the early 80's and it worked fine but then it started to have issues because of its age and heavy use. A local gym had the FB300B and the owner invited me to try it out. It worked well so I bought one. It shipped to me and was easy to put together. I use it every day for one hour and try to get in at least 18 miles.

My only negative is I am a male and it sometimes is hard on the private area so a way to change the seat out might make it more comfortable to use. Time will tell how well it stands up to daily use. If you are looking for a good overall workout, both cardio and upper body resistance, this is a great piece of equipment. Daniel

Had a couple of minor issues getting set up but the customer service phenomenal. I love the resistance settings, perfectly replicates walking.

I'm finally getting around to writing a well deserved review after purchasing a CT700 treadmill in May 2025. This is a good company with excellent customer service! Once you start researching treadmills, you'll likely first look at electric ones and will eventually discover the curved manual ones too. You'll generally first decide whether to buy an electric or a manual, and then decide how much money to spend while still trying to decide what features you can live with or without.

You can probably buy a decent electric for $1000-$1200 and up. I'd never go below that because you always get what you pay for. Most cheaper treadmills are junk, and customer service is just as bad. Just read the reviews. Manuals are much more expensive because they're simply better; however, if you like quality, you won't get a good one for under $2000. Price and incline ability are the only pros of an electric. The downside of electric is: 1) they use power and it will cost. 2) the motors can be problematic and have a limited life. A quality manual could outlast one's own life as they're so sturdy and well made! That was a deal maker for me. 3) they're not as safe as manuals (when I stop running/walking on my manual, it stops so quickly, you won't even reach the back of the belt! If you fall on an electric, the belt keeps moving. Do the math). 4) and most important to me- a manual treadmill makes you do the work yourself. It's clearly a better workout. Electrics are much easier (I wonder why?, lol). 5) electrics are noisier. Once I started researching, manual treadmills win hands down!

Once I started researching, SB Fitness got my attention. I really like that they were high quality, had several models to choose for different budgets, and offered a good warranty. As well, there's a lot to be said for simplicity. They offer a simple computer (miles, calories, time and distance) vs charging an extra $500-$1000 for some esthetic, visual screen (and a lot of data you really don't need). All I wanted was a timer and different resistance settings. I don't think the SB Fitness computer is really that accurate anyway. The mileage seems to overate the distance in my opinion. It's a semi-cheap electronic but that's why the SB is more affordable that other top brands. It works and is all I need.

When I first called and left a message, my call was returned within the hour by VP of sales Brant Brooks. Brant spent almost an hour on the phone with me patiently answering all my questions. That alone goes a long way with me! From our conversation, I learned that Brant is very athletic and uses the SB products all the time. He wasn't some fat cat sitting behind a desk; moreover, he talked the talk but also walked the walk. After our discussion, it was clear I wanted the CT700... without being up sold either. I loved the thicker rubber slats, weight rating, longer belt surface, multiple hand placements, and overall commercial sturdiness.

The unit arrived with a bit of cosmetic damage on the metal upper tubing parts. It's just one of those things, as it happens. It was an 'open box' purchase that perhaps wasn't repacked securely enough or it happened in shipping. Brant took care of me after I sent photos of the inadvertent mishap, making it right. Even though these units are well made pieces of exercise equipment, it wouldn't be enough without solid customer service. SB Fitness has both and I highly recommend giving them a try. As a person in my mid 60's and still going strong, I've worked in customer service for most of my life. I think we all know that's it's rare in today's world. Much of it is outsourced to God knows where. Just my phone call alone with Brant had me sold. High five bro.

To all the folks at SB Fitness, keep up the stellar work!

Daniel Santelli
Moffat, Colorado

This has been a wonderful addition to our fitness room! It’s the perfect piece of equipment for our entire family, including both teenagers and adults. We also can’t say enough about the customer service. We had a few minor challenges getting it set up, but the support team was incredibly responsive and helped us resolve everything quickly. Highly recommend!

Great machine. Best to have two people for assembly. Action is smooth. This is a great addition to a home gym or even a light commercial gym. Customert service is great!

I received it very fast! Would've received it sooner but the snow prevented UPS from delivering it. When I first got it I had to center the belt, but so far its worked great for an under desk option that won't break like the ones with motors.

The treadmill has been great . The assembly was pretty easy, definitely easier with 2 people.
Takes a few uses to get used to running on it but it is well worth it. You will have great workout. The belt is much easier on the knees and back and the treadmill makes you use better form. This is well worth the purchase.

I only recently became aware of manual treadmills and after considerable research, I decided to go with the CT550. The treadmill was delivered quickly. Assembly was straightforward and much easier than I expected. I referenced the assembly video on YouTube and it helped tremendously. Everything was up and running within an hour after unboxing all the components and taking my time with the assembly process. I have been using the treadmill every day and am very happy with my decision to purchase it. It's taking me some time to work out the balance and walking speed, but it is an amazing workout! The only downside was the lack of information in the user manual about how to use the digital display. In my opinion, the treadmill is well worth the investment. I look forward to using my CT550 for many, many years to come!

I chose the SB 550 because I wanted to get a better workout than just trying to move my feet to keep up with a motorized moving platform. Both my husband and I were astonished at the difference and how we are working muscles that we never have on a treadmill, or even by taking an actual walk outside. The machine is SOLID! We're so glad we made this investment!

Awesome treadmill.