Poor man's CEF69 M510 FC4.0 with 1kWh battery

fork 170 travel, 205x65 rear shock, 29"x 2.6/2.5 and only 337 mm between crankcase arms axel and ground ? it's the first rev linkage or the later adapted for X2 shock ?
Yes, only 337 from the ground to the motor axle.
I think this is the first iteration of the linkage. I got the frame around September 2025.

Cheers
 
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Yes, only 337 from the ground to the motor axle.
I think this is the first iteration of the linkage. I got the frame around September 2025.

Cheers
ok. thanks. like the CEF50, i will can't use it in mullet
 
Yes, only 337 from the ground to the motor axle.
I think this is the first iteration of the linkage. I got the frame around September 2025.

Cheers
other customer measure different value: ? 355 with 29/170/205 ?
 
Hi. Did you build the battery in a 3D-printed enclosure or use a different approach? Can you share some photos and instructions?
 
There is no 3D print for the battery.
I used 3x1 2170 cell holders formed in 3x3 factor. All sandwiched in between 3mm fiberglass,top and bottom. And for the mount I used 5x25mm aluminium bar with floating threaded inserts. Aluminium bar was offseted to make a room for brake and shift cables on the left side of the battery.
 
There is no 3D print for the battery.
I used 3x1 2170 cell holders formed in 3x3 factor. All sandwiched in between 3mm fiberglass,top and bottom. And for the mount I used 5x25mm aluminium bar with floating threaded inserts. Aluminium bar was offseted to make a room for brake and shift cables on the left side of the battery.
Thanks
 
There is no 3D print for the battery.
I used 3x1 2170 cell holders formed in 3x3 factor. All sandwiched in between 3mm fiberglass,top and bottom. And for the mount I used 5x25mm aluminium bar with floating threaded inserts. Aluminium bar was offseted to make a room for brake and shift cables on the left side of the battery.
hi. will these holders be ok? for 21700. they fit in the frame

Screenshot_20260703_134823_Samsung Browser.webp
 
Measure cells diameter, some of them have 21.5mm, make as thin spaces between cells as possible. Battery will be very tight passing through the bottom of the frame.
Why dont you just hot glue them togetther you get alot more room doing it like that, Iv built few batteries in my time, Here is one i made 6 years ago, Actually for bike in my Profile pic 20S 7P

68751566_10158890941869126_526417605846630400_n.webp
 
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