I absolutely love this bike! The lightweight and superb geometry make it amazing on single track. I don't miss my EMTB at all and I can't wait to ride it this Winter!

Shipping was fast just 2-3 days, everything arrived as expected and in good shape. Assembly was easy after watching the videos a few times, hardest part was seating the tires on the rim (setup with included tubes). I’m new to SRAM so a bit of learning curve threading in the cassette far enough to have sufficient clearance for the highest gear/smallest rear cog)…got it done.

My only concern are the brakes, seems a lot of travel on the levers for new brakes (over an inch or more)…may need to bleed the brakes? I’m contacting support to see next steps.

Wasn't sure what to expect with this being my first fat bike and all but damn I'm impressed. The Crestone feels much lighter than I thought, even with the bigger 120mm fork, and still very planted. The green paint is gorgeous, and the components are top notch. I shopped quite a few other fat bikes and none of them came close in terms of parts spec and craftsmanship for the money. Plus, they're based out of CO and it's always nice to support local! I had a couple last minute add-ons and Steve was quick to reply and get it taken care of before I arrived for pick up. I normally ride a size large gravel bike but I sized down to a medium and it worked perfectly. Can't wait to put many more miles on this thing!

This is my second pair of HED aluminum 26. I have put a lot of trouble free miles on my first set and plan on many more. Thanks to the Borealis team for unparalleled service!!

The Keystone is my first e-bike having been a fat tire mtb enthusiast this was a no brainer, it is the most fun I’ve had on a fat tire bike. Love it !! thanks Borealis.

Bought this xl frame to replace my 5 year old crestone. There was nothing wrong with my old one (had 13,000 + miles on it) but the blowout price on the xl was so good i had to buy it. paint is incredible.

This is my third eFat and although I liked other two - the Keystone is just beyond. I set mine up with a Redshift ShockStop seatpost (hardtail with benefits!), Ergotec 45 degree by 50 stem, carbon riser bar, and Schwalbe Al Mighty 4.8 tires (328 Billy Flamingo studs per baby!) The T-type drivetrain blew me away so much I converted my other bikes.

I also received unbelievable service from the Borealis sales rep during purchase.

Simply heaven!

They are great for Mountain Biking!!

Completely happy with this fat bike purchase. Extends my ability to ride during winter months here in Park City Utah

Wheels and hubs are great!

I finally have a day here where I could use these new rims. I put 3” slick tires on these rims and use them for paved trail riding. The hubs are very quiet compared to the Novatec hubs I use out on trails. They fit a Surly Wednesday perfectly. Thank you for the great price and quality wheels.

I have the carbon version and wanted a second set. Very good quality for the money . Easily setup for tubeless.

What a beautiful and well built frame! Great pricing deal and customer service was top notch.

Love the bike. I have had brands of fat bikes and the flume performs the best. The aluminum frame had super clean welds and the paint has a high quality finish. The weight was several pounds lighter than bikes at the same price point Overall impressed with ride and quality