Got to ride the Ego kit for the 1st time, I have about 50 miles under my belt and here is my impression.
This is not for aggressive riding or top level DH, the kit adds weight, but more so, the kit will break with a big hit, there is a lot exposed. If you want to do big hits and drops on an ebike go with a Stealth bomber. My bike is fun to ride on trails but accelerating aggressive on anything bumpy may destroy your rear derailleur as well, I have completely destroyed two because of acceleration on bumpy surfaces causes the chain to skip a bit and under the kind of power the motor puts out it can twist up in the derailleur and be catastrophic. (this is another reason the stealth is better for jumping and real bumpy trails, it has a single speed type drive.)
This mid-drive kit is best for low speed smooth hill climbs and high speed on tarmac like surfaces (my current gearing gets me to 35-40mph). Riding high speed on bumpy surfaces is OK, but you can not accelerate hard without risking damaging your drive train. I found there is so much torque that the chain can skip the cassette it you accell to hard on too high of a gear, so you always have to work your way thought the gears like you would with a 2 stroke. The stealth bomber has a gear box on the front and avoids this issue.
So all in all, I enjoy it, does it allow my DH bike to take the same DH trails as I would with out it, no, but I can take regular trails at 35mph which feels about the same.
Would I do it again? Hell no. Worst idea ever, I love jumping and drops, both of which would destroy the motor or controller with one well placed bottom out. I do enjoy it for everything else as well as the cool factor.
Hope this help future ebike buyers consider all angles of ownership.
The end.
