grench
Well-Known Member
I don't think I would consider the Kalkhoff an upgrade. The frame has more flex, it doesn't have the torque, and it doesn't maintain top speeds as easily. The one advantage I felt was the internally geared hub.. I would really like to consolidate to a single bike, and upgrade my Stromer ST1.
Make sure you take one on an extended ride before you sell the ST1.
If you are a light person some of my concerns may not be as apparent to you. I weigh 350 ish.