| Unit | Size | Supported weight | Resistance | Apps | Warranty |
|---|---|---|---|---|---|
Diamondback 510SR Check Discounted Price | L:64" W:23" H:50" | 300 lbs | Eddy current | 20 | Frame: lifetime Brake: lifetime Parts: 3 years Labor: 1 year Wear: 90 days |
Diamondback offers quite an array of exercising machines, including elliptical trainers and exercise bikes of all sorts. Their palette of fitness equipment includes several recumbent bikes, and the 510 SR Diamondback is the most rated of them.
Although this model does not fall into the most affordable recumbent bike category, it’s still far from being the most expensive. Evidently, this bike makes available a plethora of fitness and comfort features to stand up to the price. It’s a quality bike that will help you meet your cardio, calorie burning and muscle toning goals. It also makes an excellent machine for recovery training, or exercising during pregnancy.
Technical Details and Specifications
- Assembled dimensions: 64L x 23W x 50H inches (162.5L x 58.5W x 127H cm)
- Product weight: 125 lbs (56.7 kg)
- Supported weight: 300 lbs (136 kg)
- Handlebars: Fixed, with pulse sensors
- Seat: Adjustable
- Pedals: With straps
- Brakes: Eddy current
- Resistance: Adjustable, 16 levels
- Progress tracking console: 20 workout programs, 3 user profiles, goal tracking
- Bottle holder: Yes
- USB charging port: Yes
- Speakers: Incorporated in the console
- Fan: 2-speed, incorporated in the console
- Warranty: Frame lifetime / Brake lifetime / Parts 3 years / Labor 1 year / Wear items 90 days.
Frame
This Diamondback bike features an extremely solid, one-piece frame, made of high-tensile steel. All the steel parts are coated with a double layer powder paint of the highest corrosion level 
resistance. The frame also includes several plastic parts, such as the shrouds of the drive system, and the protective shrouds of the back supporting post of the seat. These are molded of strong and chemically resistant ABS and PVC.
The rear base of the frame is finished with levelers, in order to provide maximum stability on all kinds of floor types. The front base features two silicone coated transport wheels, to facilitate the relocation of the bike.
Overall, this bike doesn’t have an extremely wide footprint, compared with other recumbent bikes. It’s only 23″ x 64″ (58.5 x 162.5 cm) (W x L), while other bikes of this type are considerably larger. But nonetheless, it’s a pretty bulky exercising machine, thus you should check and double check it you have the available space for it.
Drive and brake systems
The Diamondback 510SR recumbent cycle features a belt drive mechanism, equipped with a Poly-V brake, longitudinally ribbed for maximum resistance to stretching, and a great grip on the flywheel and pulley. The flywheel weighs 14 lbs. (6.35 kg), heavy enough to supply the optimal resistance and smoothness to the ride. The pulley of the bike is also steel-made just as the flywheel, and equipped with two solid crank arms. Although the bike isn’t made for standing-up pedaling, these crank arms are simply solid enough to support the full, 300 lbs. (136 kg) specified user weight.
The crank arms are finished with oversized, ergonomically designed pedals, with straps. These pedals are clearly made to provide the required support and comfort for any user who requires recovery training. Also important to mention here, this bike allows pedaling both ways, forward and backwards. When pedaling backwards, the resistance doesn’t change. It remains the same, as it’s setup from the console.
This bike has a brake mechanism similar to the Nautilus R614, for example. It’s an eddy current brake, console assisted. This means it requires to be connected to a power circuit in order for the resistance to become operational. The brake pad (the electromagnet) is actually stationary, and the resistance is adjusted by changing its pull, via the controls on the bike’s console. There are 16 levels of resistance, the last levels providing quite an excellent burn. The box includes the adapter for the bike, which is designed for the U.S. outlet system. It requires to be plugged into a regular 110V power circuit. The connector for the adapter is located at the front base of the bike.
Seat and handlebars
This recumbent bike is equipped with a very comfortable seat, with a sculptured, ergonomic design. The seat is cushioned, considerably reducing the risk of any bedsores, problem which typically occurs with use of cycling bikes. It’s also sealed, and made from impermeable material, to prevent moisture absorption, which may alter its overall flexibility.
The backrest is also shaped to fit the user’s back perfectly, without causing and cuts at the edges. It feature a meshed structure, to supply the right amount of ventilation during workout, preventing overheating, which may cause considerable discomfort.
Both seat and backrest are adjustable. The seat adjustment rail offers plenty of adjustment levels, in order to accommodate users between 5’0″ and 6’5″ (152 – 196 cm). The backrest is adjustable vertically, to conform to the user’s body, in order to maximize comfort.
The arm rests are consistently padded with rubber foam for a comfy grip. They’re equipped with heart rate sensors, reading displayed by the console. The front handlebars are angle-adjustable, in order to offer various positions. However, the do not include sensors.
Console and other accessories
The console of the Diamondback 510SR, packs quite an important array of features and amenities. To begin with, this multifunctional unit incorporates a sound system, with the speakers located at the bottom part of the console. The top side of the console features a media bay, concealed by a flip-up door. Your tablet, smartphone or MP3 player is meant to be placed inside the media tray of this compartment. The console is compatible with most smart devices, tablets or MP3 players, requiring a speaker input jack of 3.5 mm. There’s also a USB charging port inside the media bay.
The bottom part of the console also hosts a 2-speed fan, great feature to have in case you need some cooling off, during high intensity training. The fan compartment incorporates a louver, to adjust the and of the air current. A foldable magazine rack is also installed in the bottom part, featuring two small arms, on each side, which can be flipped forward to support your book or magazine.
Last but not least, in terms of amenities, this stationary bike is equipped with a water bottle holder, great to have to keep hydration at hand, during each workout.
When it comes to progress tracking, the console offers several important functions. First of all, just as any other bike progress tracking computer, it displays time (total and session), distance, RPM, speed, calories and heart rate. Secondly, it offers 20 training programs, including heart rate, hill climbing, strength, interval training and fat burning programs. Each category has a direct access button on the console. Resistance levels are also adjusted from the console, via the arrow keys, while the resistance level is displayed on screen as well.
The console offers 2 distinctive user settings. Each setting requires the user’s age, weight, targeted time for exercising and resistance level, as main values. The other values displayed during workout will relate to the preset for each user. This feature is actually great if two or more members of the family use the machine, or simply if you want two quick and complete training settings.
The LCD display is backlit, allowing optimal reading even during poor lighting conditions. Also, there are two quick “GO” and “PAUSE” buttons on the console, in case you must interrupt your training session, or have a quick break.
Assembly and Maintenance
It’s not particularly difficult to assemble this bike. The core of the machine, its drive and brake mechanisms come already assembled, and sheltered by the lateral, plastic shrouds, all in place and functional. The seat rail system is also already attached. All you have to add is the bike’s bases, the front handlebar post, seat, arm rests, back rest, the front handlebar, the console, and of course, to connect the sensors and console cables. The whole task shouldn’t take more than an hour. The box comes with the manual and the tools for it.
Maintenance doesn’t require much either. Since it’s belt-driven, you don’t have to lubricate it periodically. Before each use, make sure that all the bolts are tightened in place and secured. In case you hear any scraping, grinding, or other unusual noises coming from the drive mechanism, you should call customer support. Other than this, simply keep the machine clean, and remove any moisture from the frame and console. Even though the frame is coated with moisture resistant paint, perspiration may be quite corrosive and may have an impact on the machine’s finish.
The Pros
This bike comes with quite a share of pluses when compared to other, similar recumbent bikes. To begin with, it has an eddy current break, which provides the best resistance system available. It’s frictionless, offering a smooth ride, without any wear and tear, so you won’t have to worry about changing brake pads.
It’s a really quiet bike, excellent for apartment use. You shouldn’t worry about disturbing your neighbors or other family members when using it.
It’s equipped with a multifunctional console, including 20 preset programs, 2 user profiles and various amenities such as sound system, cooling fan, media bay with tablet holder and USB charging port. It also has a foldable magazine rack.
Has a rather small footprint for a recumbent bike. At 23 x 64 inches, it doesn’t take as much space as other models, which can be up to 85″ long, and at least 35″ wide.
Backrest vertical adjustability is also, definitely a plus. Other, more expensive models, such as the SOLE LCR for example, do not offer this feature.
Sizable pedals, with an ergonomic design for maximum foot stability.
The bike comes with a consistent warranty package. As mentioned above, you will get lifetime warranty for frame and brake, 3 years for electronics, 1 year for labor, and for wear parts 90 days.
The Cons
No online connectivity, or data transfer functions. Other top-quality bikes in this price range, offer the 
possibility to download your training data from your bike, and upload it online, on various sites, for better analysis.
Final Conclusion
The Diamondback 510SR offers just about everything you would expect from a superior recumbent bike. It combines comfort and effectiveness superlatively, providing a recumbent workout setting for users of all levels. It’s great for recovery training and for elderly users, as it eliminates any stress on the back and joints. However, it also supplies high difficulty resistance settings and preset programs, to meet the needs of professional athletes. It’s a great bike for your daily cardio and muscle toning, an exercising machine that will most definitely help you follow a healthier lifestyle.