Product Overview
![]() |
![]() |
Digital Monitor | Arm Exercisers |
![]() |
![]() |
Pulse Sensors | 8-Level Adjustable Resistance |
Let Sunny Health & Fitness keep your workouts on track with the SF-RB4631 highly reviewed Recumbent Bike with Arm Exercisers. This versatile and reliable recumbent bike with arm exercisers has a large seat and back cushion with adjustable inseam for users and various sizes. Control your workout intensity with 8 levels of magnetic resistance. Keep track of workouts with the integrated digital monitor. Monitor tracks: time, count, total count, calories and count per minute. Also contains handlebars with dual position handle grips and built-in transportation wheels for easy portability.

Features
Digital MonitorTracking your progress is simple with the Digital Monitor screen! Displaying your time, count, total count, calories, and count per minute , you will be able to see your results to keep you motivated and on pace. With a convenient scan mode, you can choose to have these features continuously repeated to keep up with all calculations!

Adjustable Arm Resistance
With a simple twist, you can increase or decrease resistance for your arm exercisers so your workout can remain challenging and effective throughout your fitness journey. Perfect for any user's skill level!

Built-In Arm Exerciser
Handlebars with dual position handle grips. Get those shoulders and forearms moving!

8 Level Adjustable Resistance
Switch up the intensity of your workout with the convenient tension knob. Control your leg workout intensity with 8 levels of magnetic resistance.

Pulse Sensors
Monitor and maintain your target heart rate. The more steady and prolonged the elevated heart rate is during the workout, the more fat is burned.

EASY Seat Adjustments
With the easy seat adjuster, you no longer have to get up off the machine to make seating adjustments. Its all done at the flick of a handle by your side, with no hassle, while you stay seated.

Specifications
TECHNOLOGY
Monitor:• scan
• time
• speed
• distance
• calorie
• odometer
• pulse
8 levels of adjustable resistance
Pulse sensors
Easy-to-use seat adjustment lever
Arm exercisers
COMFORT
Wide bike seat with back supportSeat dimensions: 10L x 14.5W x 2H in
2-way adjustable seat (forward/back)
Non-slip pedal w/ adjustable strap
Built-in transportation wheels
ENGINEERING
350 lb weight capacityAdjustable magnetic resistance
Weighted pedals are self-leveling
Adjustable inseam height: Min 27 in / Max 34 in
CONVENIENCE
Warranty: 3 year structural frame 180 days other parts and componentsProduct weight: 91.1 lb
Product dimensions: 51L x 25W x 52.5H in
Ship weight: 103.2 lb
Ship dimensions: 54L x 10W x 33.5H in


Downloads
SF-RB4631 Product User ManualFAQs
Do Recumbent Bikes Provide an Effective Workout?The recumbent bike provides a workout for individuals of all ability levels making it is safe exercise machine that provides a low impact total body workout. The longer and more intense the workout the more effective it becomes.
What is the warranty of my recumbent bike?
There is a 3-year warranty on the structural frame and 180-day warranty on other parts and components.
What is the benefit of a magnetic resistance?
Magnetic resistance offers a virtually silent and smooth, realistic riding motion. The resistance can be adjusted by a simple twist on the knob. Use level 1 for easy going workout, and increase up to level 8 for a challenge.
What is the maximum weight the bike will support?
Feel confident sitting on our durable design with a 350LB max user weight limit.
Why should I get a recumbent bike?
Recumbent bikes are built for comfort while providing a low-impact aerobic and cardiovascular workout. Its wide and cushioned seat provides lumbar support and the step-through design makes mounting and dismount a breeze.
Does the bike provide feedback during my workout?
The digital monitor helps track time, count, total count, calories, count per minute.
What is the benefit of using the arm exercisers?
The arm exercisers allows you to get in a full body workout and to target muscles in your upper body.
Does the arm exerciser move independently from bike?
Yes, the arm and leg exercisers are independent from each other.
Is this bike easy to assemble?
Yes, it is! There are only 7 steps in the assembly.

Due to national shipping delays, order delivery times may be impacted.
Please click here to read more about the NATIONWIDE SHIPPING DELAYS
Please contact us directly for an exact ETA of your delivery. Most of our products have a regular handling time between 3-5 business days Please allow 3-15 business days for delivery.
Freight Orders Include FREE Delivery Appointment.
Some of our heavier machines require more customization and are made-to-order in our supplier’s manufacturing plants in United States. Once completed, they are carefully
inspected at the Quality Center, after which they are shipped using freight shipping carriers.
We know that sometimes you have to wait a little longer to get your order but it's always worth it!
Please click here to read more about our Order Shipping & Delivery.
![]() |
Exchanges for damages: Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@barbellflex.com and we will process an insurance claim on your behalf. Be advised that most of our suppliers request you (the buyer) to pay for shipping the item back to them for inspection for damaged returns or replacements. In some cases, we are able to waive the fee, however this is at the discretion of our supplier and on a one-time courtesy basis. The time it takes for your exchanged product to reach you will largely vary on your location. Should the item you return be over $75, we strongly encourage you to use a trackable shipping service with signature or shipping insurance! Note that we will not be able to provide replacements/refunds without photos of the damage. |
|
![]() |
Returns & Refunds: All new products purchased through BarbellFlex.com include a 30 Day Return Guarantee. Refunds will only be issued to the original credit card that you use when placing your order. Please click here to read more about our Returns & Exchanges. |
![]() |
We Put Our Customers First! Customer experience is our #1 priority. We understand that these products are available on other websites and we are very appreciative that you chose to do business with us. As such, we pride ourselves in providing a superior concierge sales and shopping experience to all of our customers, via email, phone, social media and live chat.
|
|
![]() |
Returns are easy, simply contact us to request a return for your item and we will work with you to get the process going. We'll get you a replacement or refund in a snap! Please check our Returns & Exchanges tab for more info! |
|
![]() |
In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down. Our 100% Price Guarantee has some limitations. Please click here to read more about our Price Match Guarantee. |
|
![]() |
We thank you for your incredible service!. With gratitude, we partnered with GovX to offer a discount on our store to our military, their spouses & dependents, first responders, government employees and our wonderful teachers. Please click here to read more about our GovX ID Military Discount. |
|
![]() |
Ordering from Barbell Flex is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either. We invested time and money to ensure our backend system is secure and robust. We care about your information as much as you do! |
Product Overview
![]() |
![]() |
Digital Monitor | Arm Exercisers |
![]() |
![]() |
Pulse Sensors | 8-Level Adjustable Resistance |
Let Sunny Health & Fitness keep your workouts on track with the SF-RB4631 highly reviewed Recumbent Bike with Arm Exercisers. This versatile and reliable recumbent bike with arm exercisers has a large seat and back cushion with adjustable inseam for users and various sizes. Control your workout intensity with 8 levels of magnetic resistance. Keep track of workouts with the integrated digital monitor. Monitor tracks: time, count, total count, calories and count per minute. Also contains handlebars with dual position handle grips and built-in transportation wheels for easy portability.

Features
Digital MonitorTracking your progress is simple with the Digital Monitor screen! Displaying your time, count, total count, calories, and count per minute , you will be able to see your results to keep you motivated and on pace. With a convenient scan mode, you can choose to have these features continuously repeated to keep up with all calculations!

Adjustable Arm Resistance
With a simple twist, you can increase or decrease resistance for your arm exercisers so your workout can remain challenging and effective throughout your fitness journey. Perfect for any user's skill level!

Built-In Arm Exerciser
Handlebars with dual position handle grips. Get those shoulders and forearms moving!

8 Level Adjustable Resistance
Switch up the intensity of your workout with the convenient tension knob. Control your leg workout intensity with 8 levels of magnetic resistance.

Pulse Sensors
Monitor and maintain your target heart rate. The more steady and prolonged the elevated heart rate is during the workout, the more fat is burned.

EASY Seat Adjustments
With the easy seat adjuster, you no longer have to get up off the machine to make seating adjustments. Its all done at the flick of a handle by your side, with no hassle, while you stay seated.

Specifications
TECHNOLOGY
Monitor:• scan
• time
• speed
• distance
• calorie
• odometer
• pulse
8 levels of adjustable resistance
Pulse sensors
Easy-to-use seat adjustment lever
Arm exercisers
COMFORT
Wide bike seat with back supportSeat dimensions: 10L x 14.5W x 2H in
2-way adjustable seat (forward/back)
Non-slip pedal w/ adjustable strap
Built-in transportation wheels
ENGINEERING
350 lb weight capacityAdjustable magnetic resistance
Weighted pedals are self-leveling
Adjustable inseam height: Min 27 in / Max 34 in
CONVENIENCE
Warranty: 3 year structural frame 180 days other parts and componentsProduct weight: 91.1 lb
Product dimensions: 51L x 25W x 52.5H in
Ship weight: 103.2 lb
Ship dimensions: 54L x 10W x 33.5H in


Downloads
SF-RB4631 Product User ManualFAQs
Do Recumbent Bikes Provide an Effective Workout?The recumbent bike provides a workout for individuals of all ability levels making it is safe exercise machine that provides a low impact total body workout. The longer and more intense the workout the more effective it becomes.
What is the warranty of my recumbent bike?
There is a 3-year warranty on the structural frame and 180-day warranty on other parts and components.
What is the benefit of a magnetic resistance?
Magnetic resistance offers a virtually silent and smooth, realistic riding motion. The resistance can be adjusted by a simple twist on the knob. Use level 1 for easy going workout, and increase up to level 8 for a challenge.
What is the maximum weight the bike will support?
Feel confident sitting on our durable design with a 350LB max user weight limit.
Why should I get a recumbent bike?
Recumbent bikes are built for comfort while providing a low-impact aerobic and cardiovascular workout. Its wide and cushioned seat provides lumbar support and the step-through design makes mounting and dismount a breeze.
Does the bike provide feedback during my workout?
The digital monitor helps track time, count, total count, calories, count per minute.
What is the benefit of using the arm exercisers?
The arm exercisers allows you to get in a full body workout and to target muscles in your upper body.
Does the arm exerciser move independently from bike?
Yes, the arm and leg exercisers are independent from each other.
Is this bike easy to assemble?
Yes, it is! There are only 7 steps in the assembly.

Due to national shipping delays, order delivery times may be impacted.
Please click here to read more about the NATIONWIDE SHIPPING DELAYS
Please contact us directly for an exact ETA of your delivery. Most of our products have a regular handling time between 3-5 business days Please allow 3-15 business days for delivery.
Freight Orders Include FREE Delivery Appointment.
Some of our heavier machines require more customization and are made-to-order in our supplier’s manufacturing plants in United States. Once completed, they are carefully
inspected at the Quality Center, after which they are shipped using freight shipping carriers.
We know that sometimes you have to wait a little longer to get your order but it's always worth it!
Please click here to read more about our Order Shipping & Delivery.
![]() |
Exchanges for damages: Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to info@barbellflex.com and we will process an insurance claim on your behalf. Be advised that most of our suppliers request you (the buyer) to pay for shipping the item back to them for inspection for damaged returns or replacements. In some cases, we are able to waive the fee, however this is at the discretion of our supplier and on a one-time courtesy basis. The time it takes for your exchanged product to reach you will largely vary on your location. Should the item you return be over $75, we strongly encourage you to use a trackable shipping service with signature or shipping insurance! Note that we will not be able to provide replacements/refunds without photos of the damage. |
|
![]() |
Returns & Refunds: All new products purchased through BarbellFlex.com include a 30 Day Return Guarantee. Refunds will only be issued to the original credit card that you use when placing your order. Please click here to read more about our Returns & Exchanges. |
![]() |
We Put Our Customers First! Customer experience is our #1 priority. We understand that these products are available on other websites and we are very appreciative that you chose to do business with us. As such, we pride ourselves in providing a superior concierge sales and shopping experience to all of our customers, via email, phone, social media and live chat.
|
|
![]() |
Returns are easy, simply contact us to request a return for your item and we will work with you to get the process going. We'll get you a replacement or refund in a snap! Please check our Returns & Exchanges tab for more info! |
|
![]() |
In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down. Our 100% Price Guarantee has some limitations. Please click here to read more about our Price Match Guarantee. |
|
![]() |
We thank you for your incredible service!. With gratitude, we partnered with GovX to offer a discount on our store to our military, their spouses & dependents, first responders, government employees and our wonderful teachers. Please click here to read more about our GovX ID Military Discount. |
|
![]() |
Ordering from Barbell Flex is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either. We invested time and money to ensure our backend system is secure and robust. We care about your information as much as you do! |