The diamondback 300 ef elliptical trainer is a very compact elliptical. Although the weight of the 300 ef is 150, it is not a lightweight elliptical trainer. Given the dimensions and the weight of the diamondback 300 ef elliptical trainer, I would say that it is solid enough to handle steady use.
That is, of course, if the materials and construction process is up to par. From what I know of diamondback elliptical trainers, they are built pretty solid.
Eddy current resistance systems are a preferable breaking system for elliptical trainers. It is both, very quiet and quite reliable.
However, I would think that there would be more than 8 resistance levels for $699. 10 resistance levels would be preferable.
What I dont like about the diamondback 300 ef is the fact that it only has a manual resistance adjustment via oversized tension knob. Personally, I really dont like to stop my workout to increase or decrease the resistance. At $699, this feature should be present.
Now, because this is a relatively small elliptical trainer with a small frame, it may pose a few problems for those of you who are taller than 6'. Even with multiple adjustments, the elliptical stride is only 15" at the maximum so it limits the overall range of motion for taller individuals.
15" Diameter stride
I dont like the fact that for $699, you can only get a 15" elliptical stride. I think an 18" stride with adjustable peddles would have made for a better range of motion for individuals over 6' tall as well as being comfortable for individuals under 5'5".
6 window LCD readout;
Water bottle holder
Front-mounted water bottle holder and reading rack
All the basic readouts are available for the diamondback 300 ef elliptical trainer. The console has 6 screens that show time, speed, distance, calories, pulse, and resistance bars. Pretty standard at this price range. However, an interesting console.
3 workout programs;
A fairly straight forward and basic package. Not a whole lot of programs to choose from. I think for $699, you should be able to get a few more programs. However, for the diamondback 300 ef, your getting a half decent elliptical machine. Your not really paying for the bells and whistles for the diamondback 300 ef, your paying for a quality budget elliptical trainer.
The diamondback 300 ef elliptical trainer is a middle weight elliptical trainer that is both, sturdy and reliable. Diamondback elliptical trainers are solidly built and will stand up to everyday use. Again, the materials and construction process are pretty reliable with the 300 ef elliptical trainer.
The diamondback 300 ef comes with pulse grips located on the front hand rails. Simply grab the hand rails and you get your pulse reading on the front console.
A pretty good warranty package considering the price of the diamondback 300 ef elliptical trainer. At this price range, compared to other elliptical trainers such as the proform warranty, the diamond back 300 ef elliptical trainer looks pretty good.
Again, the price is for quality. However, there are two things that I dont like about the diamondback 300 ef elliptical trainer. The first, it only has a 15 inch elliptical stride. The second, it has a manual resistance system. For $699, I would expect to have an automatic resistance adjustment on the console.
Now, dont get me wrong, I think the diamondback elliptical trainers are well made elliptical machines. Basically, youre paying for a well made machine with basically no high end features - Plain and simple.
Overall, I think the diamondback 300 ef is a well made elliptical trainer. However, there arent a whole lot of features. You are basically given a choice with the 300 ef elliptical. You can have well made, no frills elliptical machine or you can have an elliptical such as the proform 1280s that has all the top end features but not that well made.
Again, it depends on you. I would personally go with the well made elliptical machine that will last.
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