Diamondback Fitness 510Ic Electronic Display & Quiet Exercise Bike

Last updated: February 17, 2021


We looked at the top Exercise Bikes and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Exercise Bike you should buy.

Product Details

In our analysis of 89 expert reviews, the Diamondback Fitness 510Ic Exercise Bike placed 20th when we looked at the top 21 products in the category. For the full ranking, see below.

From The Manufacturer

As a top-end, Best Buy rated bike, the Diamondback 510Ic comes with a set of nice features, of which the most important is its up to 16 resistance settings that can be adjusted to the user’s particular fitness level. By the same token, athletes can select between 14 workout programs that mimic just about any type of terrain, from mountain to hills and everything in between. Additionally, heart patients can take comfort in the 4 cardiovascular programs that will help them keep a close eye on their heart rates. The indoor cycle is even equipped with a brilliant blue backlit LCD screen that displays your fitness-related data such as distance covered, calories burned, time, cadence and heart rate. The Diamondback 510Ic also boasts an ultra-sensitive heart monitor placed on the handlebars to closely track your cardiovascular goals. Perhaps the most striking feature is the battery-free display option: indeed, your pedaling motions will generate enough energy to power up the console leaving you free from endless cables and power outlets. The 510Ic known as being one of the most comfortable on the market since both the handlebars and the saddle are thickly padded to keep any discomfort at bay. The 510Ic fits any size since athletes can also adjust the seat vertically and horizontally according to their individual height, and the handlebars on the fore/aft position to adjust to different arms and torso lengths. The Diamondback 510Ic is an exceptionally heavy model, which means that it remains completely steady even during the most energetic workouts. This feature is enhanced by the heavy-duty 31 pound flywheel which provides excellent momentum, enabling you to quickly tone up your quads, glutes and calves. Because of the heavy flywheel, athletes can experience an exceptionally smooth riding motion and equally quiet cycling experience. Lastly, since this machine can accommodate an impressive maximum user weight of 300 pounds, it can easily be used by anyone looking to shed unwanted weight. The high weight capacity also enhances the machine’s longevity and durability, which means that your machine can last for several decades- if not for life- with the proper care. *Water Bottle is not included.

Our Expert Consultant

Stephanie Mansour   
Certified Personal Trainer, Health and Wellness Expert

Stephanie Mansour, host of “Step It Up with Steph” on public broadcasting, has been coaching women for over a decade on how to lose weight and make it last. She has a Bachelor of Arts in communications with an emphasis on women’s studies and psychology from the University of Michigan. She holds certifications in life coaching, personal training, yoga and Pilates.

Expert Reviews


What reviewers liked

Diamondback Fitness uses magnetic drives on all its bikes. This helps all of their bikes run quietly, and the 510Ic in particularly is an almost silent spinner.
The Diamondback 510Ic has one of the best workout monitors among indoor cycles. A bright, easy to read LCD screen that displays a variety of critical workout statistics including time, speed, distance, burned calories, heart rate and cadence (pedal rotations per minute.)
Heavy duty 32 lb. flywheel is very sturdy
Gives a good stable ride that doesn’t move around when you are using it standing up or sitting down
Comfortable mesh seat back
One of the lowest priced indoor cycling bikes to offer a display console
Console doesn’t require batteries, starts automatically when you pedal
The Diamondback Fitness 510Ic Indoor Cycle comes with many benefits to help accommodate for one’s fitness goals and desires.

What reviewers didn't like

This product is usually high quality. However, it seems that a small number of defective machines slip past quality control. Some customers subsequently report great experience with customer service, but others do not.
Not too much to mention here, but some people feel it’s on the heavy side. Weighing in at 125 pounds fully assembled, it created some difficulty for a few users when they received their bike in assembling it.
No mp3 input or built-in speakers
The heart rate monitor seems to lag a few seconds in detecting heart rate making it difficult to use the heart rate controlled programs
Hard adjustment on the display keypad
Heart rate feedback displayed on the console is a little slow to pick up on changes transmitted via the touch sensors
Uncomfortable seat
One review stated that the cranks are of very close proximity to the spinner itself, therefore leaving the ankle very susceptible to constantly collide with the spinner
View our Exercise Bike buying guide for in-depth advice and recommendations.

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