Precor RBK 835 Recumbent Bike vs Precor UBK 835 Commercial Upright (2026): Key Differences
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The precor rbk 835 recumbent bike vs ubk 835 commercial upright comparison highlights two distinct training styles from the same brand. Both machines feature Precor’s commercial-grade build quality and ergonomic design principles. The main difference lies in their posture. One offers a seated, back-supported ride. The other provides an upright cycling position with multiple handlebar options. You should choose based on your physical needs and training goals.
Key differences
| Aspect | Precor RBK 835 Recumbent Bike | Precor UBK 835 Commercial Upright Bike |
|---|---|---|
| Design | Recumbent | Upright |
| Dimensions | 67 by 23 by 50 inches | 48 by 62 by 21 inches |
| Weight | 210 pounds | 160 pounds |
| Resistance Levels | not listed | 25 |
| Seat Features | Air flex seat with 11 adjustment levels | Ergonomic seat with comfort grooves |
Which one should you choose?
Choose Precor RBK 835 Recumbent Bike if
- You need a low step-over height for easy entry and exit.
- You prefer a seated position that supports your back.
- You want a seat that moves with your body for comfort.
Choose Precor UBK 835 Commercial Upright Bike if
- You want to train in upright, cruising, or road positions.
- You need a lighter machine that is easier to move.
- You prefer a standard upright cycling posture.
Verdict: The RBK 835 suits users seeking comfort and back support through its recumbent design. The UBK 835 fits those who want traditional upright cycling with multiple riding positions. Your choice depends on whether you prioritize seated comfort or active cycling posture.
RBK 835 vs UBK 835 Specs
Bike Design
The Precor RBK 835 is a recumbent bike, meaning you sit with your back supported and legs extended forward. This design features a step-through frame with a low 4-inch step-over height, making entry and exit simple for users with mobility concerns. In contrast, the Precor UBK 835 is an upright bike. It offers three ergonomic riding positions: upright, cruising, and road. You sit vertically, engaging your core more directly. The choice depends on whether you prioritize back support and ease of access, or a traditional cycling posture that mimics outdoor riding.
Resistance Levels
The Precor UBK 835 provides 25 distinct resistance levels. This allows you to make fine adjustments to your workout intensity, which is useful for interval training or precise power management. The provided data does not list the specific number of resistance levels for the Precor RBK 835. Both machines are built for commercial use, so both likely offer robust resistance mechanisms. However, only the UBK 835 specifies this count in the available information. If you need granular control over resistance steps, the UBK 835 data supports that capability clearly.
Seat Comfort
The Precor RBK 835 features an air flex seat with high-ventilation back and a suspension system that moves with you. It has 11 adjustment levels, adjustable while seated or standing. The seat back provides full lumbar support. The Precor UBK 835 includes an ergonomic seat with comfort grooves. It lacks the described suspension or air flex technology in the provided data. The UBK 835 focuses on a traditional saddle feel. For users with back issues, the RBK 835 offers superior support and adaptive comfort through its unique suspension design.
Dimensions and Weight
The Precor RBK 835 is larger, measuring 67 by 23 by 50 inches and weighing 210 pounds. Its size accommodates the recumbent frame and step-through design. The Precor UBK 835 is more compact, measuring 48 by 21 by 62 inches and weighing 160 pounds. It is lighter by 50 pounds. If floor space is limited, the UBK 835 takes up less room. The RBK 835 requires a larger footprint due to its extended leg position. Both are heavy enough to remain stable during intense use, but the upright model is easier to move if needed.
Pedal Design
The Precor RBK 835 features wide, dual-sided pedals that can be used without straps. This allows you to place your feet securely without fastening straps, which is convenient for quick transitions or users who prefer loose footwear. The provided data does not specify the pedal design for the Precor UBK 835. It does mention universal pedal attachment for installing your own pedals. The RBK 835’s strap-free design offers a distinct advantage for ease of use and accessibility, particularly for casual riders or those with limited dexterity.
Which bike fits your needs?
Users needing back support and easy access
The RBK 835 recumbent design supports your back while you ride. Its low 4-inch step-over height allows simple entry and exit. The air flex seat moves with you for comfort. You can adjust the seat in 11 levels, even while on the bike. This setup suits those who prioritize posture and ease of use during long sessions.
Athletes seeking varied riding positions and intensity
The UBK 835 upright bike offers three ergonomic riding positions: upright, cruising, and road. It includes 12 pre-programmed workouts and 25 resistance levels for intense training. The universal seat post allows you to install your own saddle or pedals. This model fits users who want customizable positions and higher resistance options for gym-style workouts.
Buyers prioritizing compact footprint and portability
The UBK 835 upright bike measures 48 by 21 by 62 inches, making it more compact than the recumbent alternative. It also weighs 160 pounds, which is lighter than the RBK 835. This smaller footprint and reduced weight make it easier to fit in smaller spaces or move around your home gym area.
The products compared
Precor RBK 835 Recumbent Bike
Best for: Users needing easy access and back support
- Bike Design
- Recumbent
- Weight
- 210 pounds
View on Amazon: Precor RBK 835 Recumbent Bike Affiliate link
The Precor RBK 835 is a commercial-grade recumbent exercise bike designed for comfort and accessibility. It features a 4-inch low step-over height and an Air Flex seat with 11 adjustment levels that move with you. The unit includes touch and telemetry heart rate monitoring and wide, dual-sided pedals. Measuring 67 by 23 by 50 inches and weighing 210 pounds, it suits users seeking a stable, low-impact cycling experience.
Pros
- 4-inch low step-over height for easy entry and exit
- Air Flex seat with 11 adjustment levels and suspension
- Touch and telemetry heart rate monitoring
- Wide, dual-sided pedals usable without straps
Cons
- Heavy 210-pound build limits portability
- No mention of a digital display for workout metrics
- No mention of Bluetooth connectivity or app integration
Good fit if
- You need a low step-over height for easy access
- You prefer a recumbent position for back support
- You want a seat that adjusts while you are on the bike
Skip if
- You require a compact upright bike for small spaces
- You need a lightweight unit for frequent moving
- You want a traditional upright cycling posture
Verdict: Precor RBK 835 Recumbent Bike offers a stable, accessible recumbent ride with a supportive, adjustable seat. It fits users who prioritize comfort and easy entry over space-saving or upright mechanics.
Precor UBK 835 Commercial Upright Bike
Best for: Commercial upright cycling with customization
- Resistance Levels
- 25
- Bike Design
- Upright
- Dimensions
- 48 × 62 × 21 inches
- Weight
- 160 pounds
View on Amazon: Precor UBK 835 Commercial Upright Bike Affiliate link
The Precor UBK 835 is a commercial-grade upright bike designed for gym environments. It features 25 resistance levels and 12 pre-programmed workouts. The design includes three ergonomic riding positions and a comfort-grooved seat. You can install your own saddle or pedals using the universal attachment. At 160 pounds, this unit is built for durability and stability during intense training sessions.
Pros
- 25 resistance levels for varied intensity
- Three ergonomic riding positions
- Universal seat post and pedals attachment
- Commercial-grade build quality
Cons
- Large footprint at 62 inches wide
- Heavy at 160 pounds
- No heart-rate sensors listed
Good fit if
- You need a durable upright bike for commercial use
- You prefer multiple riding positions
- You want to customize your saddle or pedals
Skip if
- You have limited floor space
- You need a recumbent seating position
- You require built-in heart-rate monitoring
Verdict: Precor UBK 835 Upright Exercise Bike is a heavy-duty upright bike for users who prioritize commercial durability and customizable riding positions over compact size.
Specifications side by side
| Spec | Precor RBK 835 Recumbent Bike | Precor UBK 835 Commercial Upright Bike |
|---|---|---|
| Resistance Levels | not stated | 25 |
| Bike Design | Recumbent | Upright |
| Design | Recumbent | Upright |
| Weight | 210 pounds | 160 pounds |
| Dimensions | not stated | 48 × 62 × 21 inches |
| Color | Black | Black |
| Model | PHRCB8353070EN-101 | PHRCB835B3090EN |
Frequently asked questions
Which bike is better for users with back pain?
The Precor RBK 835 is the better choice for back support. Its recumbent design features a supportive, adjustable seat that cradles your lower back. You sit in a reclined position with your legs extended forward. This reduces strain on your spine compared to the upright posture required on the UBK 835.
How do the dimensions of the UBK 835 compare to the RBK 835?
The UBK 835 measures 48 inches in length, 62 inches in width, and 21 inches in height. The RBK 835 data does not list specific length or width dimensions. Both bikes are heavy, with the RBK 835 weighing 210 pounds and the UBK 835 weighing 160 pounds.
Is the RBK 835 easier to get on and off?
Yes, the RBK 835 is easier to access. It features a step-through frame with a low step-over height. This allows you to sit down and stand up without lifting your legs high. The UBK 835 is an upright bike, which typically requires a higher step-over motion.
What is the main difference in riding posture between these two bikes?
The RBK 835 is a recumbent bike, meaning you sit with your back supported. The UBK 835 is a commercial upright bike, requiring you to sit vertically. The recumbent position is more stable and accessible. The upright position mimics traditional cycling mechanics.
Which bike is heavier and more stable?
The RBK 835 is heavier at 210 pounds. The UBK 835 weighs 160 pounds. The additional weight of the recumbent model often contributes to a more stable ride. This stability is beneficial for users who prioritize comfort and ease of entry.
Can I customize the riding position on the UBK 835?
The UBK 835 is designed for commercial durability and customizable riding positions. You can adjust the seat and handlebars to fit your body. The RBK 835 also features an adjustable seat, but its recumbent design limits the range of motion compared to the upright model.
Do both bikes come in black?
Yes, both the RBK 835 and UBK 835 are available in black. The RBK 835 model number is PHRCB8353070EN-101. The UBK 835 model number is PHRCB835B3090EN. Both machines maintain a consistent, professional aesthetic suitable for home or commercial gyms.