Here is my attempt to create a Canadian road/winter friendly build. I based this build on a Trampa Holypro 35 and dual SK3 245kv / Max6 ESC. I designed the motor mounts, ESC enclosures, TPU seals, Lipo checker enclosure and wheel pulleys. For the battery box, I used a Pelican 1150 box. Right now, the ESC enclosure is splashproof (the ESC are already waterproof, so I am not really worried about it) and there is a TPU seal printed in order to insolate the wires. I design the motor mount in a way I can add motor protection at 250 degrees around the motor, making almost a complete enclosure (the photo are showing the first version, I wait for new PETG spools to print it!). The battery box is perfectly watertight (I have printed TPU seals for all wires, connectors). If you want to check the details, I have created a tutorial draft for this build.
What I have left to do:
- Design something to keep the battery box warm inside for allowing LiPo batteries to work properly when the temp is low. I was thinking about hand heaters, but I have not tested this yet. Does anyone has tested something similar?
- Motor protection would be splash proof but I am wondering how to ensure to prevent snow/water to go in the motor around the motor pulley… does anyone have a solution to protect completely a motor (for an e-MTB)?
- Design belt protection (I have integrated into my current design enough room to add belt cover + mudguards).
Also, I was wondering if the belt work as good under very low temperature: is it cold resistant?
Do not hesitate to comment and share your own experience English is not my native language so please forgive any mistake
Here is a video of the first ride: https://www.youtube.com/watch?v=JfdFzbUw5ZE
… and a few photos: