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Sunny Health & Fitness Indoor Cycling Exercise Bike with Magnetic/Felt Resistance and Belt/Chain Drive Optional Bluetooth Connectivity with SunnyFit® App

4.4 4.4 out of 5 stars 7,589 ratings

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About this item

  • Start an in-home cardio workout with the SF-B901 Pro Indoor Cycling Bike by Sunny Health & Fitness.
  • Sturdy Flywheel: The 40-pound chrome flywheel is designed to maintain momentum smoothly as you cycle on the cardio machine. Heavy flywheels support speed, stability, and consistency across your workout.
  • Resistance: Increase resistance or come to a complete stop in a flash with the friction resistance knob. Use the resistance knob to increase and decrease resistance applied to the flywheel.
  • Adjustable Handlebars: Ergonomic handlebars are designed to accomillimeterodate multiple riding styles while cycling on this bike for home use. Easily adjust the 2-way multi-grip handlebars, based on your height.
  • Fitting & Adjustments: Tailor your riding experience to your individual height. Use the four-way adjustable seat that can be fitted to your individual leg length.
  • Levelers: Prevent wobbling and jerks while riding when you adjust the base levelers that will keep the bike stable on uneven surfaces.

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Product Description

SF-B901 indoor cycle bike

Sunny Health & Fitness Pro Indoor Cycling Bike - SF-B901

The standard in home fitness! Sunny Health & Fitness SF-B901 Pro Indoor Cycling Bike offers all of the necessities for an amazing cycling workout along with everything at-home fitness enthusiasts could wish for. Our fully adjustable seat and adjustable handlebars offer a completely customizable experience for ultimate user comfort and compatibility.

  • 2-way adjustable handlebars and 4-way adjustable seat
  • Adjustable Inseam Height: Min 30 in / Max 42 in
  • Adjustable felt pad resistance system
  • 40 lb chromed solid flywheel
  • Max User Weight: 275 lb; Product Weight: 102 lb
  • Product Dimensions: 46.5L x 18W x 46H in

DUAL FELT PAD RESISTANCE

40 LB FLYWHEEL

MICRO-ADJUSTABLE RESISTANCE

EMERGENCY STOP BRAKE

DUAL FELT PAD RESISTANCE

Your SF-B901 is equipped with a quiet and smooth felt fabric brake pad system. The resistance system allows for various tension levels which allow you to create an intense workout.

40 LB FLYWHEEL

The heavier the flywheel, the smoother the ride! Engineered for speed and stability this flywheel will create more momentum for longer periods of time keeping your workout going the distance!

MICRO-ADJUSTABLE RESISTANCE

Switch up the intensity of your workout with the convenient tension knob. With a simple twist, you can increase or decrease resistance so your workout can remain challenging and effective

EMERGENCY STOP BRAKE

Enjoy the experience of a realistic real-road feeling while the emergency brake will bring the bike to an immediate stop.

ADJUSTABLE HANDLEBARS

CAGED FOOT PEDALS

4-WAY ADJUSTABLE SEAT

TRANSPORTATION WHEELS

ADJUSTABLE HANDLEBARS

Advanced ergonomic handlebars deliver a comfortable ride and allows for multiple hand positions. Adjustable, completely customizable handlebars provide comfort while enduring long rides.

CAGED FOOT PEDALS

Caged Foot pedals provide more stability and safety allow you the user to ride vigorously without worry.

4-WAY ADJUSTABLE SEAT

With a simple twist of a knob, you can move back and forth (and up / down) so your workout can remain comfortable.

TRANSPORTATION WHEELS

The front-mounted transportation wheels make moving the bike easy and convenient around your house for easy storage. Just tilt the bike forward and roll.

CADENCE SENSOR FOR SUNNYFIT APP
CADENCE SENSOR FOR SUNNYFIT APP
Pro Indoor Cycling Bike by Sunny Health Fitness SF-B901 SF-B1002 leather brake pad cycle bike Sunny Health Fitness Pro II Indoor Cycling Bike with Device Mount - SF-B1995
SF-B901 SF-B1002 SF-B1995
Customer Reviews
4.4 out of 5 stars
7,589
4.4 out of 5 stars
6,383
4.5 out of 5 stars
1,631
Digital Monitor - - Scan, Speed, Distance, Time, Calories, Odometer, RPM, Pulse
Drive System Chain Drive Belt Drive Belt Drive
Resistance Type Felt Pad Leather Pad Felt Pad
Flywheel Weight 40 lb 49 lbs 40 lbs
Max User Weight 275 lb 275 lbs 275 lbs
Product Weight 102 lb 110.8 lbs 99.4 lbs
Sunny Health Fitness Exercise Wheel - NO. 003 Sunny Health Fitness Adjustable Phone/Tablet Clamp - NO. 082 Sunny Health Fitness Fitness Equipment Floor Mat, Large - NO. 083 Sunny Health Fitness Cycling 2-in-1 Cadence Sensor ,Indoor/Outdoor Bikes - CB100 Sunny Health Fitness Door Way Chin Up and Pull Up Bar
NO. 003 NO. 082 NO. 083 CB100 NO. 025
Customer Reviews
4.3 out of 5 stars
1,805
4.1 out of 5 stars
2,213
4.6 out of 5 stars
25,116
4.2 out of 5 stars
78
4.2 out of 5 stars
5,454
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Product Description

Start an in-home cardio workout with the SF-B901 Pro Indoor Cycling Bike by Sunny Health & Fitness. Tailor your workout with the four-way adjustable seat and two-way adjustable handlebars, which are designed around comfort and performance. Feel confident and secure when you slide your feet into the universal toe cages on the stationary bike. Enjoy a smooth and challenging workout experience when you pedal against the consistent chain-drive mechanism using the large muscles of your hips and thighs. Maintain cycling momentum on the fitness bike with the sturdy 40-pound chrome flywheel. Switch up your routine and easily change cycling position on the home exercise bike with the multi-grip handlebars. Increase workout resistance smoothly, effectively, and quietly with the micro-adjustable dual felt-pad resistance. Designed with heavy-duty metal, this bike supports a maximum user weight limit of 275 lbs After your workout, move the indoor cycling bike across your home with the built-in transportation wheels. Build a strong cardiovascular system while your burn calories on the Sunny Health & Fitness SF-B901 Pro Indoor Cycling Bike.

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Sunny Health & Fitness Indoor Cycling Exercise Bike with Magnetic/Felt Resistance and Belt/Chain Drive Optional Bluetooth Connectivity with SunnyFit® App


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
7,589 global ratings

Customers say

Customers like the sturdiness, ease of assembly, quality and value of the stationary bicycle. For example, they mention it's dependable, quiet and stable for out of the saddle efforts. Some appreciate performance. That said, some complain about the pain relief and disagree on noise and weight.

AI-generated from the text of customer reviews

1,691 customers mention1,334 positive357 negative

Customers like the sturdiness of the bicycle. They mention that it has a solid construction, is very dependable, and has high quality components. They also say that it's quiet and stable for out of the saddle efforts. However, some customers feel the bike is cheap and gets their heart rate up.

"...The bike is solid. (According to the description, the front flywheel weighs approximately 40 pounds on its own and that seemed about right to me.)..." Read more

"...The bike has definitely held up and in fact we bought a second one, this time from AMAZON. it is much newer but it arrived in perfect condition...." Read more

"...The components of the bike feel pretty high quality, the only shoddy component I noticed was a kind of weird, messily superglued wire with slightly..." Read more

"...I am 140 pounds and am 5'6". The bike is sturdy, I feel totally safe when I am up out of the saddle...." Read more

1,104 customers mention1,058 positive46 negative

Customers find the assembly of the bicycle to be easy. They mention it's straight forward, and easy to follow the directions. They also appreciate the ease of using it right away, and the fact that the instructions already have instructions on how to replace the brake pads. Overall, customers are happy with the ease and convenience of the product.

"...bike, all of the necessary tools were included, and the assembly was incredibly intuitive and required minimal reference to the instructions...." Read more

"...There's something immensely convenient about just hopping onto a bike in your own home, but not nearly as enjoyable as a road ride, of course...." Read more

"...I took my time at each step, and felt the process was pretty easy. Just be particularly careful when attaching the pedals...." Read more

"...Absolutely worth it!ProsLow costVery easy assemblySturdy, solid constructionMinimal maintenance needed..." Read more

1,099 customers mention904 positive195 negative

Customers like the quality of the stationary bicycle. They say it is an excellent exercise bike, very capable fitness bike, and a great option for those looking for a basic bike for spinning workouts. Customers are also happy with the pedal stroke, saying it feels natural.

"...We are extremely happy with the pedal stroke, it feels natural and we prefer it to the feel of the Keiser M3...." Read more

"...If you want a really inexpensive but very capable fitness bike, this is a great option...." Read more

"...I ride 2-4 times per week, and it's so nice to have access to an easy workout in my living room...." Read more

"...for $200, which is a steal for a stationary bike that also helps build muscle...." Read more

1,062 customers mention1,062 positive0 negative

Customers appreciate the value of the bike. They say it is a great entry-level or budget bike, and the experience is awesome. They also mention that the bike is able to withstand daily use and is easy to repair.

"...This one gets five stars from me. Simply put, this is an extremely good deal for the price. An absolute bargain...." Read more

"...my rather lengthy list of minor quibbles, it's still a nice bike for the price and I don't regret getting it...." Read more

"...The availability, magnetic wheel, price, super fast Amazon Prime shipping, the iPad shelf, and the "computer" are what sold me...." Read more

"...Absolutely worth it!ProsLow costVery easy assemblySturdy, solid constructionMinimal maintenance needed..." Read more

437 customers mention393 positive44 negative

Customers like the performance of the bicycle. For example, they say it's sturdy, gets the job done, and the pedals work well. Some mention that the RPM monitor still seems to work perfectly. The flywheel is quiet and works well on high resistance. Customers also say the bike serves all the basic functions they require and has no issues.

"...I'm not sure what happened - once it was unstuck, all was good. It works fine and just like new...." Read more

"...to know we have used this bike for a while now and it has continued to work as it should...." Read more

"...incredibly easy, and the fit and finish (at least initially) appeared to be quite good...." Read more

"...The RPM monitor still seems to work perfectly at the moment, and the messy glue isn't noticeable as it's fairly small/unobtrusive..." Read more

1,067 customers mention512 positive555 negative

Customers are mixed about the noise of the bicycle. Some mention it's super quiet, while others say it makes a little rattling sound. The brakes may squeak a bit after a while, and the chain isn't dead silent. The wheel rattle is still there, but still inaudible above headphones.

"...The noise is much lower than I anticipated given the reviews that I read and very acceptable for this piece of equipment, perhaps even on the low..." Read more

"...ConsThe brakes may squeak a bit after a while. This is resolved by oiling the flywheel periodically...." Read more

"...The cycle adjusts perfectly for each of us. The chain system is quiet and we cannot hear it over the streamed class...." Read more

"...It makes a knocking noise when I pedal" - sure does... when your pedal cage fastener hits the pedal it will indeed make a knocking noise...." Read more

403 customers mention269 positive134 negative

Customers are mixed about the weight of the bicycle. Some mention that the fly wheel is heavy, which is great, and easy to move around. However, others say that it's very heavy in the box, bulky, and the resistance goes from very light to very heavy only about a half turn.

"...The 40 lb flywheel is great, probably contributing to the ride smoothness and quality...." Read more

"...Once put together, it was easy for him to carry it to the next room (probs about 80 pounds)...." Read more

"...First, be warned. The box is heavy. I mean, really heavy. The shipping weight is listed at 112 pounds and the box is large...." Read more

"...Sturdy, solid constructionMinimal maintenance neededVery easy to move (we move these puppies a lot - even outside)..." Read more

572 customers mention159 positive413 negative

Customers are dissatisfied with the pain relief of the bicycle. They mention that the saddle is wide and uncomfortable, the handlebars can be rather uncomfortable, and the seat is hard. They also experience persistent back pain from using the bike.

"...This seat is uncomfortable" - that's biking y'all. Buy yourself a pair of $10 biking shorts on here when you buy this bike...." Read more

"...Yes, the seat is hard, but it's supposed to be. Most bikes sold use a generic seat and those that have a problem with it usually replace it anyway...." Read more

"...We are extremely happy with the pedal stroke, it feels natural and we prefer it to the feel of the Keiser M3...." Read more

"...The seat is like any road bike seat, to the novice it is hard and uncomfortable - like they are meant to be, but you can install a different seat or..." Read more

A really nice bike, with a problem for tall riders.
4 Stars
A really nice bike, with a problem for tall riders.
This bike is to replace an old Schwinn Model 220 Recumbent trainer which we left behind on a long move. Tried to replace it with another recumbent but, unfortunately, it seems that all home recumbent trainers (even the schwinns) have gone to a tubular steel crank that accepts only non-standard threaded pedals, e.g. won't accept SPDs. Have thus moved to upright "spinner" type trainers that still do accept standard pedals. I did a lot of research prior to buying and wanted1 a bike that would take SPD pedals2 a bike that would fit both my wife (5'2") and I (6'3").3 a closely similar trainer to the quite nice spinner bike we use at our health club (a SportsArt C510)The Sunny model B901 seemed to fit all 3 criteria. Looking at it, it is virtually identical to the SportsArt trainer with a few exceptions I'll detail below. Bear in mind the SportsArt is a circa $2000 list bike and the B901 is under $300Quick impressions1) the bike is solidly made as advertised2) it is quite similar to our health club bike -- could be a knockoff. Major differences are wool pad resistance rather than magnetic, and no fore-aft adjustment on handlebars. Latter is no big deal, as the bars are huge with many hand positions. I notice the club units never had theirs adjusted, anyway3) fits both my wife and I4) extraordinarily easy to assemble 30 minutes including unpacking. Without the manual!!!We feel this is an excellent bike for the money paid. HOWEVER there is one major flaw I have discovered, inherent in the design apparently.The seat post as well as the handlebar post do not fit, to close tolerance, in their receiver tubes, which are 2" steel box tubes, both of identical design. The design differs from the club bike, in that the tubes are turned 45 degrees from the vertex-to-front orientation of the club bike. That is, the flat side of the box tubes face front. There is a threaded clamp on the front face to hold down the adjusting pin and compress the outer tube against the inner tube, this differs from the clamp-type closure of the club bike. The major difference is that the club bike has a steel-on-steel nesting of the two tubes that is precise to close tolerance; there is virtually no free play between tube and receiver. On the other hand, the B901 has an interior "bushing" of semi-hard plastic between the inner steel tube and the outer one. There is free play between the bushing and both the inner tube and outer receiver. The seatpost tube is, apparently, not designed to fit snugly. The amount of inner tube movement is very dependent on how much the tube is raised, and how little remains in the receiver. At full extension (for tall riders) there is approximately 1/8" to 1/16" movement (slop) on all sides of the seat tube. This may be accommodated in the fore-aft direction by squeezing the set screw knob, which compresses the tubes and bushing slightly, so movement in the pedaling direction is not noticeable. But there is no way to do this in the side-to-side direction -- no set screw. Measured from a wall, there is something like ¼" to 3/8" total side to side play at the top of the receiver when pedaling. Part of this is the extra space between the ID of bushing and OD of inner tube. Part is similar space between the OD of bushing and the outer tube. This movement is almost unnoticeable for short riders using a quite low seatpost setting (setting 2-3) but is a quite distracting problem for riders my size (setting 9). The club bike, steel-on-steel, shows no noticeable wobble.The handlebar tubes are of identical design and show similar wobble side-to-side, but lower in magnitude than the seat post because the former is much less extended. At setting 4, there is noticeable lateral wobble, but less than the extended seatpost as described above.In addition to being annoying, such repetitive movement of metal against plastic for extended times would seem likely to cause damage to the bushings.I contacted Sunny about this, and they were quite responsive. They have not however offered any solutions and said this is the first inquiry of this type they have received. They opine there is nothing defective with this unit; it is just that most riders may be smaller and don't encounter this issue.I came up with my own "FIX" of which I think McGyver would approve. Using standard 1 1/2" pine shims on one side of the box tube only, between the inner tube and the bushing. See photos. the wobble problem is fixed admirably (although perhaps the shims will wear out quickly being soft wood).My suggestions to Sunny would be that they either a) redesign the bushing to fit the tubes more snugly, with recommendation to users to use WD40 or lubricant to install, or b) quick fix, provide several fully-tapered shims out of plastic (perhaps PVC, maybe 4" long and with some type of grip outside to facilitate installation) and acknowledge that these may be necessary to fully snug the posts at extended post settings.So, the bike gets 4 stars. I really like it and it works very well -- with, in my case, the wooden shim fix. Sunny seems committed to keeping customers happy. But I would challenge the Sunny engineers to consider a "bushing" upgrade. I have looked at the Sunny compared to the SportsArt and am not convinced it would be impractical to do steel-on-steel without the bushing on the Sunny. It may of course add to the cost to have machined tubes to accomplish this.Would I buy it again? Yes.A lot of reviewers complained about screeching or noises. I am willing to bet that all those issues could be fixed with some silicone spray lubricant or WD-40 wherever the noise is coming from....likely the front wheel and brakeUPDATE 3/31/2020 After a few weeks of riding, a noise started in the crank area, in time with the crank revolution. It was a "tick...tick..." kind of noise. I reported it to Customer service and they opened a ticket, and helped me diagnose the problem as potentially one of the crank arms working loose. I had a crank tool and pulled off the right crank, and sure enough there were small but noticeable divots on the inside surface of the arm that rides on the square spindle of the crank. Also, the hub of the arm was misshapen, like someone had used a defective die or something for the casting. Sent them photos and they immediately fedexed out a new crank arm that did not have this problem, and it snugged up/made no further noise.It is probably true, as some reviewers mention, that some of the components are not top quality. But that is why this costs $200 not $1500. The Sunny service was quite good, within the warranty period. I like the bike and hope it holds up.
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Reviewed in the United States on October 2, 2012
Color: GrayStyle: ChainVerified Purchase
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Reviewed in the United States on June 29, 2015
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bt10
5.0 out of 5 stars VERY Sturdy Stationary Bike. Initial Impression is very positive.
Reviewed in Canada on March 20, 2022
Color: GrayStyle: ChainVerified Purchase
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bt10
5.0 out of 5 stars VERY Sturdy Stationary Bike. Initial Impression is very positive.
Reviewed in Canada on March 20, 2022
Perhaps I didn't have super high expectations but the reviews were good, it was stated to be suitable for someone my height (6'2") and weight (225 lbs.) and the price seemed too good to pass up so I bought it in preparation for next Winter.
From the moment I touched it, my expectations have been exceeded. The box is a combination of heavy (115 lbs.) and large rectangular box which made it difficult for a single person to carry. I recommend that you be prepared to have two healthy people available to carry this to it's expected resting place from where it is delivered. I work out and believe I am fairly strong but this package humbled me.
I set it up in two spurts of approximately 15-20 minutes each. Total time is probably around 30 minutes. Each and every part on this bike, including the "travel" blocks which can be thrown away, are extremely heavy and well built. Solid steel (I assume) and painted if not stainless steel. If this were a real bike you would not make it very far. But once I got it set up and hopped on, it took a few minutes to make the appropriate adjustments to get the seat and handle bars to where they felt comfortable. I was a bit disappointed that you have to take the adjustment knobs completely out in order to make the adjustments but each and every knob and adjustment piece are very heavy and sturdy. Even the seat and handlebars seem extremely well built and of high quality. The fly wheel is heavy and looks pretty flashy. There is not a single item on the bike that seems like a corner was cut. Even the instructions use full sized pages, are clear and were easy to follow. The only item that I wasn't quite sure about were the pedal nuts that came attached to the pedals and not on the base of the bike like the picture seemed to suggest. This bike seems NOTHING like any other Chinese manufactured item I have ever purchased and I seem to buy quite a few things from overseas. Mostly electronics though and in that space what could be metal is typically plastic. Not the case with this bike. What could be plastic seems to be metal.
I test rode the bike for ~5 minutes or so with the tension as high as possible where I could still get to a good speed and I was able to get heated up to the point where I was about to start sweating. There were a few small noises that prevented the bike from being near silent but everything seemed to be installed correctly (both what I assembled and what came pre-assembled).
In addition to the next Winter season, I plan to use this bike most days while I'm on conference calls via Teams, Zoom, WebEx, etc.. At some point, I plan to follow a few hacks from another review to add a tachometer/odometer and a few other bells and whistles.
I HIGHLY recommend this bike if you've been thinking about getting a well built but basic stationary bike and you're able to get it at a good price. At least a price that is good for you.
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Alejandra Canaan
5.0 out of 5 stars Excelente compra!!!
Reviewed in Mexico on July 2, 2021
Color: GrayStyle: Magnetic BeltVerified Purchase
One person found this helpful
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David Grogan
5.0 out of 5 stars Perfection. Beautiful build quality for the price!
Reviewed in the United Kingdom on November 17, 2023
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2 people found this helpful
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Amazon Customer
5.0 out of 5 stars Muy buen producto
Reviewed in Mexico on March 10, 2021
Color: GrayStyle: Belt DriveVerified Purchase
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Amazon Customer
5.0 out of 5 stars Excellent Purchase
Reviewed in Canada on April 28, 2018
Color: GrayStyle: Belt DriveVerified Purchase
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