Diamondback Bicycles El Oso Fat Bike Review

This exceptional fat bike has a price tag that isn't for the light-hearted. What you get for your money is an unbeatable ride that provides incredible amounts of fun.

This fat bike is totally mind-blowing. Really. The 5″ tires look completely insane and put the biggest grin on your face whenever you look at them.

It’s heavy, make no mistake. I’m lucky that I have a garage I can wheel it into at the end of the day. I would hate to have to carry it upstairs.

In my opinion, this is the perfect bike for an older, more experienced rider. You won’t win any races on it due to it’s weight, but you will enjoy a nice, smooth ride that provides unlimited amounts of fun.

Our thoughts on the bike

diamondback fat tire bike

The only immediate upgrade I can recommend is replacing the seat. For a long ride, the original seat just wasn’t cutting it for me.

The breaks on this bike are very responsive. The hydraulic brakes are amazing. Even with such a heavy bike, you can stop using just one finger.

It did take me a bit of trial and error to learn how much pressure to use to just stop the bike without ending up over the handlebars. This is something that takes a lot of getting used to on uneven terrain. The shifting is also very crisp.

One of the best things about this bike was assembly.

Not only was a lot of it already put together, but it was adjusted perfectly. That was the case for the shifters, derailers, and brakes.

Make sure you have a pump on hand because the tires will definitely need some air by the time they get to you.

On top of that, the wheels spun perfectly true. I fully expected to have to have this bike tuned by a professional and was thrilled to be able to skip that and take it straight out for a spin.

With this bike, I got platform pedals, which are great for when I’m just cruising around town or when I am hitting the trails. They even came with removable pins.

What we’d like improved

On the negative side, I tried to go tubeless with this bike and failed big time. After doing some research, it seems I’m not the only one. The tires it came with can’t convert and even if they could, the rims are not tubeless ready.

There may be someone out there with the time, money and patience to see this through, but for me, I decided it wasn’t worth it.

Some people claim that a real fat bike needs tubeless tires, but I can’t say it bothers me that much that this one doesn’t.

Overall, this is a great bike. I highly recommend it to anyone starting out fat biking. I also recommend it to other people who need a smooth ride to get places and stay active.