XTERRA Fitness SB240 Recumbent Bike vs XTERRA Fitness MB550 Indoor Cycle: Spec Comparison
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Comparing the xterra fitness sb240 recumbent bike vs fitness mb550 indoor cycle reveals two distinct training styles. Both units offer basic LCD tracking and quiet operation for home use. The SB240 provides a recumbent seat with magnetic resistance and Bluetooth connectivity for app integration. The MB550 uses a heavy flywheel and felt pad resistance for a traditional indoor cycling feel. You must decide which motion and control system fits your routine.
Key differences
| Aspect | XTERRA SB240 Recumbent Bike | XTERRA MB550 Indoor Cycle |
|---|---|---|
| Bike Design | Recumbent | Indoor cycle |
| Resistance Type | Magnetic | Felt pad push brake |
| Smart Connectivity | Bluetooth | not listed |
| Flywheel Weight | not listed | 48.51 lb |
| Display Type | 5.5” Blue Backlit LCD | LCD |
| Weight | 73.8 pounds | 107 pounds |
Which one should you choose?
Choose XTERRA SB240 Recumbent Bike if
- You prefer a seated position that supports your back during longer rides
- You want to connect your bike to third-party fitness apps via Bluetooth
- You need a lighter unit that is easier to move around your space
Choose XTERRA MB550 Indoor Cycle if
- You want the momentum and feel of a heavy 48.51 lb flywheel
- You prefer manual knob adjustments with unlimited resistance micro-adjustments
- You want a traditional upright indoor cycling posture for high-intensity intervals
Verdict: The SB240 suits riders seeking comfort and digital integration for steady-state cardio. The MB550 is better for those who want the authentic weight and resistance feel of a spin class. Your choice depends on whether you prioritize ergonomic support or flywheel momentum.
SB240 vs MB550 Spec Comparison
Design and comfort
The XTERRA SB240 is a recumbent bike, meaning you sit in a chair-like position with back support. This design is gentle on the lower back and joints. The MB550 is an indoor cycle, mimicking a road bike with a forward-leaning posture. It uses a 3-piece pedal crank for durability. If you prefer a relaxed seated position or have back issues, the SB240 recumbent frame is the better fit. The MB550 suits those wanting a traditional cycling stance for more intense leg work.
Resistance system
The SB240 uses a whisper-quiet belt drive with magnetic resistance. Magnetic systems offer smooth, consistent tension without physical contact, reducing wear over time. The MB550 relies on a felt pad push brake resistance. This system requires manual adjustment via a knob below the console. While effective, felt pads can create more friction noise and wear down faster than magnetic components. For a smoother, quieter ride with less maintenance, the SB240 magnetic system holds the advantage.
Smart connectivity
The SB240 includes built-in Bluetooth that connects to FTMS-enabled third-party apps like Kinomap. This allows you to track workouts in interactive programs. The MB550 data does not list any Bluetooth or app connectivity features. It only offers a basic LCD screen. If you want to integrate your ride with digital training platforms or track data across apps, the SB240 is the clear choice. The MB550 is a standalone unit without digital integration.
Flywheel and motion
The MB550 features a 48.51 lb precision balanced flywheel. This heavier mass provides premium fluid motion and momentum, simulating real road riding. The SB240 data does not list a flywheel weight, as recumbent bikes often prioritize different mechanical traits. For cyclists seeking a heavy, smooth pedal stroke that carries through the spin, the MB550’s substantial flywheel is a key benefit. The SB240 focuses on steady, controlled resistance rather than high-inertia momentum.
Display and feedback
The SB240 has a large 5.5-inch blue backlit LCD. It displays speed, time, distance, calories, RPM, program profile, and pulse. The MB550 has a standard LCD screen showing time, speed, distance, and mode. The SB240 offers more detailed metrics, including RPM and pulse, which are useful for heart rate training. The backlit screen is also easier to read in low light. If you want comprehensive workout data at a glance, the SB240 display is superior.
Footprint and weight
The SB240 is wider at 25.1 inches but shorter in length at 50.4 inches. It weighs 73.8 pounds. The MB550 is narrower at 22.4 inches but longer at 45.7 inches. It is significantly heavier at 107 pounds. The SB240 is lighter and easier to move if needed. The MB550’s heavier build may feel more stable during intense sprints. For space efficiency, the MB550 is slightly more compact in width, while the SB240 offers a lighter frame for relocation.
Which bike fits your training style?
You want app connectivity and back support
The SB240 connects via Bluetooth to FTMS apps like Kinomap. Its recumbent design offers back support. A 5.5-inch blue backlit LCD shows speed, time, distance, calories, RPM, and pulse. Magnetic resistance ensures a whisper-quiet ride. The 24 pre-set programs help maintain motivation during workouts.
You prefer a traditional indoor cycling feel
The MB550 mimics a road bike with an indoor cycle design. It features a 48.51 lb precision balanced flywheel for fluid motion. Felt pad push brake resistance provides quiet operation. Unlimited micro-adjustment levels are controlled by a knob below the console. The LCD displays time, speed, distance, and mode.
You need a compact footprint for small spaces
The MB550 measures 22.4 inches wide, 38.6 inches high, and 45.7 inches long. It weighs 107 pounds. The SB240 is wider at 25.1 inches, taller at 44.5 inches, and longer at 50.4 inches. The MB550’s dimensions make it slightly more space-efficient for tighter areas.
The products compared
XTERRA SB240 Recumbent Bike
Best for: Seated cycling with app connectivity
- Resistance Type
- Magnetic
- Bike Design
- Recumbent
- Drive System
- Belt drive
- Smart Connectivity
- Bluetooth
- Display Type
- 5.5” Blue Backlit LCD
- Dimensions
- 50.4 × 25.1 × 44.5 inches
View on Amazon: XTERRA SB240 Recumbent Bike Affiliate link
The XTERRA SB240 is a recumbent bike with a 25.1-inch width and 73.8-pound weight. It features a whisper-quiet belt drive system with magnetic resistance. A 5.5-inch blue backlit LCD displays speed, time, distance, calories, RPM, and pulse. Bluetooth connectivity links to FTMS-enabled apps like Kinomap. It offers 24 pre-set programs. This model suits users seeking a space-efficient design for seated cycling.
Pros
- Whisper quiet smooth belt drive system with magnetic resistance
- Large 5.5-inch blue backlit LCD displays key metrics
- Bluetooth connects to FTMS-enabled third-party apps
- 24 pre-set programs for varied workouts
- Walk-through frame design for easy access
Cons
- Recumbent design limits standing cycling options
- No built-in heart rate sensors mentioned in data
- Limited to 24 pre-set programs without custom options
Good fit if
- You prefer a seated recumbent riding position
- You want to use third-party fitness apps via Bluetooth
- You need a walk-through frame for easy access
Skip if
- You require an upright indoor cycling experience
- You need built-in heart rate monitoring sensors
- You prefer a compact footprint under 25 inches wide
Verdict: XTERRA SB240 Recumbent Exercise Bike offers a quiet magnetic resistance system and app connectivity for seated workouts. It fits users who prioritize comfort and digital tracking over high-intensity standing cycling.
XTERRA MB550 Indoor Cycle
Best for: Basic indoor cycling with unlimited resistance
- Resistance Type
- Felt pad push brake
- Resistance Levels
- Unlimited
- Bike Design
- Indoor cycle
- Flywheel Weight
- 48.51 lb
- Display Type
- LCD
- Dimensions
- 45.7 × 22.4 × 38.6 inches
View on Amazon: XTERRA MB550 Indoor Cycle Affiliate link
The XTERRA MB550 is an indoor cycle built for steady, quiet workouts. Its 48.51 lb flywheel delivers fluid motion, while the felt pad push brake offers unlimited resistance levels for precise control. The compact frame measures 45.7 inches long and 22.4 inches wide. An LCD screen tracks time, speed, distance, and mode. This bike suits riders who want a durable, straightforward stationary cycle.
Pros
- 48.51 lb precision balanced flywheel for smooth pedaling
- Unlimited resistance levels via felt pad push brake
- LCD display shows time, speed, distance, and mode
- 3-piece pedal crank for added durability
Cons
- No heart rate monitoring sensors listed
- No digital connectivity or app support
- Manual knob resistance lacks digital feedback
Good fit if
- You prefer a quiet, low-maintenance indoor cycle
- You want unlimited resistance adjustments for varied intensity
- You need a compact footprint for home use
Skip if
- You require heart rate tracking during workouts
- You want digital connectivity or app integration
- You prefer magnetic resistance for silent operation
Verdict: XTERRA MB550 Indoor Cycle offers a sturdy, straightforward ride for users who value unlimited resistance and a compact design. It fits those who want a basic, durable indoor cycle without digital distractions.
Specifications side by side
| Spec | XTERRA SB240 Recumbent Bike | XTERRA MB550 Indoor Cycle |
|---|---|---|
| Resistance Type | Magnetic | Felt pad push brake |
| Resistance Levels | not stated | Unlimited |
| Bike Design | Recumbent | Indoor cycle |
| Drive System | Belt drive | not stated |
| Flywheel Weight | not stated | 48.51 lb |
| Smart Connectivity | Bluetooth | not stated |
| Display Type | 5.5” Blue Backlit LCD | LCD |
| Design | Recumbent | not stated |
| Dimensions | 50.4 × 25.1 × 44.5 inches | 45.7 × 22.4 × 38.6 inches |
| Weight | 73.8 pounds | 107 pounds |
| Color | Black | White, Black, Blue |
| Model | SB240 | MB550 |
Frequently asked questions
Which bike is lighter and easier to move?
The XTERRA MB550 weighs 107 pounds, while the SB240 weighs 73.8 pounds. You should choose the SB240 if you need to move the unit frequently. The lower weight makes the recumbent model easier to reposition in your home gym space.
Which bike takes up less floor space?
The MB550 has a smaller footprint, measuring 22.4 inches wide and 45.7 inches long. The SB240 is wider at 25.1 inches and longer at 50.4 inches. If your room has limited width, the indoor cycle fits more snugly against a wall.
Can I use apps with the SB240?
Yes, the SB240 supports Bluetooth connectivity for app integration. You can link it to FTMS-compatible platforms like Kinomap for digital tracking. The MB550 does not list digital connectivity features, making it a simpler, non-digital option for basic riding.
Does the MB550 have back support?
No, the MB550 is an indoor cycle with a standard saddle. It lacks the backrest found on the SB240. If you require lumbar support or a seated position with a backrest, the recumbent SB240 is the necessary choice for your comfort.
What colors are available for the MB550?
The MB550 comes in White, Black, and Blue. The SB240 is listed only in Black. You have more aesthetic options for the indoor cycle if you want to match specific home decor colors beyond the single black option available for the recumbent bike.
Is the SB240 suitable for users with back pain?
The SB240 features a recumbent design with a built-in backrest. This supports your spine and reduces strain on the lower back during workouts. The MB550 requires you to sit upright on a saddle, which may not provide the same level of spinal support.
Which bike is better for quiet workouts?
Both units are designed for quiet operation in home environments. The SB240 uses a magnetic resistance system for smooth, silent adjustments. The MB550 offers a sturdy, straightforward ride. You can use either bike without disturbing others in your household.

