In my personal opinion, this is one of the sleekest and great looking/performing 29er. Perfect for single tracks. I rode this back in 2016 for about 100 miles off-road and was impressed.
When I googled, there were some scattered reviews for this product. This is from someone else, not me.
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Very few times does a product over deliver this much!
Background: I built a 3D printed kepler drive roadbike and climbed mt. washington with it. Great for a road bike, but not a sophisticated enough control system for technical single track riding.
The riding I do is very rocky, see a video of me at my local trail here: [youtube]
https://youtu.be/4ZLbgR_U-Ng?t=57s[/youtube] , which means a bafang or TZ mid drive kit would be smashed on the first ride.
My criteria for a new E-bike was as follows -Performance off road (good suspension, drivetrain, BB clearance etc.) -Torque sensing, natural riding experience -Intergrated design -Low noise -Range
I ended up selecting the Bull E-stream evo 29er FS http://
(Link Removed - No Longer Exists) as it looked to have all the features I needed. Can't recommend the dealer in Madison enough!
I have 5 hours of single track riding here in new england so far, so here are my first impressions.
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First the riding experience of the Brose motor system is exactly what I was looking for. It is silent, and reacts so quickly to my pedal inputs that I never am search for power when I need it, or pushed through a corner or obstacle when I don't want to be. The 650Whr battery is really over kill for most of my rides, as I can finish up a 1.5hr single track ride and still have 4 out of 5 bars left over. I can't wait to go for a longer all day ride and see how it performs. Almost all of my riding is done at level 2 of 4 assist, as this feels most natural and controllable in the woods. Riding roads or double track is the only place where the top assist is helpful, which allows a 19mph pace with very little effort on the riders part. The other (non)noticeable feature of the brose is the lack of noise, really silent in level 2, and even level 4 is hardly noticeable unless I am climbing out of the saddle. The lack of noise and integrated design really make it a stealthy Ebike.
The only part of the bike I would change is the weight. It only apparent when trying to loft the wheel over rocks, or hopping off features. I am excited to try a bike with the lightweight Fazua drive, as it should have enough power and range for me, while weighing less.
Overall I can't see the point in DIY at this time if you are looking for a natural riding experience in technical single track. For the price you can't source a non-powered bike of this level, a mid drive kit, and a battery.