Gionnirocket
Well-Known Unidentified Member
- Region
- USA
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- Y. O.
This is my ZenIs your Zen frame the same as the photon ultra with the battery built into the down tube?

How did you attach the other battery and cover the hole in the frame? I had mine weighed at my LBS and they said it weighed close to 85lbs.
What I did is buy the empty battery case and fit the 10Ah battery inside.

Wired up the charge and discharge ports and it looks and functions as the stock battery. The seller was even able to match the very hard to find charge port.
Yet another reason why I appreciate non proprietary hardware
The Biktrix equivalent is this model.
Juggernaut FS Step-Thru MTB
Unleash the power of the Juggernaut FS Step-Thru, Biktrix’s latest masterpiece in electric mountain biking. Designed with the seasoned rider in mind, this Full Suspension, Low Step eMTB combines power, endurance, and comfort for an unparalleled riding experience. Key Features: Powerful...
biktrix.com
But do your research as I know nothing about it other than it looks to be using a very similar frame.