Hello guys,
I didn't made a thread about the first build but I will summarize a bit.
No-suspension MTB steel frame with a front hub 9C 2807 powered by a 36V20Ah LiFePo4 battery
Max speed: 28km/h (17.4mph) no pedal
After 1500km of commuting i start "needing" for more power, so I found this wonderful forum and start to search:
• bought a 12fet IRFB4110 40A infineon controller plus a CA DPS v2.3 from EM3EV and another 36V20Ah battery.
• In the motor i installed a temperature sensor and upgraded the phase wires to 10AWG and ready to oil cooling.
View attachment 10
Max speed (no pedal): 54km/h (33.5mph)![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
Now I was getting a good speed and torque but after some tests I realize that the front hub with all this power was more unpredictable and all the additional weight of the second battery with a non-suspension bike will lead to some serious injury.![Crying :cry: :cry:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So it’s time for a second build:
More clean :wink:
More powerful![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
More safe
(if possible) ![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
After a lot of reading i have decided the major components:
• Vector frame (aka e-kross)
• Cromotor v3 laced in 17” moto rim with a shinko SR241 3” wide
• Adaptto Max-E with BMS + 70A coil
• HK lipo Multistar 22S 40Ah
• DNM USD-8 suspension with dual disc brake
• Tektro dual disc brakes with 203mm rotor
• DNM RCP-Burner 2 shock
• 26” front bicycle rim (for now)
This will be a heavy bike (+/- 65kg / 143 pounds) but hopefully with a lot of torque![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
View attachment 9
After the frame arrived I installed the headset following some DIY videos on youtube and managed to mount the very tight swingarm on the frame.
Cromotor laced and tire installed
![DSC05409.jpg DSC05409.jpg](https://endless-sphere.com/sphere/data/attachments/89/89055-1c3feace7fff606b2089ad1b679cf54a.jpg)
![DSC05407.jpg DSC05407.jpg](https://endless-sphere.com/sphere/data/attachments/89/89056-5a98e87fa292af6b6a68bd1cbe7c5ca3.jpg)
Cromotor installed on frame and freewheel clearance check:
![DSC05428.jpg DSC05428.jpg](https://endless-sphere.com/sphere/data/attachments/89/89057-a7134919c285ca089ca1b4cd9f0ce01f.jpg)
Suspension and front tire installed on frame:
![DSC05438.jpg DSC05438.jpg](https://endless-sphere.com/sphere/data/attachments/89/89058-b340b62d02493eab1e5f1c81fb3630d7.jpg)
Capacity check inside the frame for all the lipo:
![DSC05418.jpg DSC05418.jpg](https://endless-sphere.com/sphere/data/attachments/89/89059-e2751b7ba2dddcc9e98d8373d20c2541.jpg)
I’m going to need some spacers to make the frame a little wider:
![DSC05420.jpg DSC05420.jpg](https://endless-sphere.com/sphere/data/attachments/89/89060-282429a20d0cd1fedd14e984096e142e.jpg)
Start drilling and routing all the wires:
View attachment 2
![DSC05442.jpg DSC05442.jpg](https://endless-sphere.com/sphere/data/attachments/89/89061-3b46fade41da5c1e65aebb1dd49b8818.jpg)
Thumb throttle for variable regenerative braking:
![DSC05440.jpg DSC05440.jpg](https://endless-sphere.com/sphere/data/attachments/89/89062-9fdbaaa8e3b17cab1cfbcb1218c2295e.jpg)
I didn't made a thread about the first build but I will summarize a bit.
No-suspension MTB steel frame with a front hub 9C 2807 powered by a 36V20Ah LiFePo4 battery
Max speed: 28km/h (17.4mph) no pedal
After 1500km of commuting i start "needing" for more power, so I found this wonderful forum and start to search:
• bought a 12fet IRFB4110 40A infineon controller plus a CA DPS v2.3 from EM3EV and another 36V20Ah battery.
• In the motor i installed a temperature sensor and upgraded the phase wires to 10AWG and ready to oil cooling.
![IMG_0059.jpg IMG_0059.jpg](https://endless-sphere.com/sphere/data/attachments/89/89054-57f9168fdba2430061d4b41e9caacc87.jpg)
Max speed (no pedal): 54km/h (33.5mph)
![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
Now I was getting a good speed and torque but after some tests I realize that the front hub with all this power was more unpredictable and all the additional weight of the second battery with a non-suspension bike will lead to some serious injury.
So it’s time for a second build:
More clean :wink:
More powerful
![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
More safe
![Rolling Eyes :roll: :roll:](/sphere/data/assets/smilies/icon_rolleyes.gif)
![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
After a lot of reading i have decided the major components:
• Vector frame (aka e-kross)
• Cromotor v3 laced in 17” moto rim with a shinko SR241 3” wide
• Adaptto Max-E with BMS + 70A coil
• HK lipo Multistar 22S 40Ah
• DNM USD-8 suspension with dual disc brake
• Tektro dual disc brakes with 203mm rotor
• DNM RCP-Burner 2 shock
• 26” front bicycle rim (for now)
This will be a heavy bike (+/- 65kg / 143 pounds) but hopefully with a lot of torque
![Twisted :twisted: :twisted:](/sphere/data/assets/smilies/icon_twisted.gif)
View attachment 9
After the frame arrived I installed the headset following some DIY videos on youtube and managed to mount the very tight swingarm on the frame.
Cromotor laced and tire installed
![DSC05409.jpg DSC05409.jpg](https://endless-sphere.com/sphere/data/attachments/89/89055-1c3feace7fff606b2089ad1b679cf54a.jpg)
![DSC05407.jpg DSC05407.jpg](https://endless-sphere.com/sphere/data/attachments/89/89056-5a98e87fa292af6b6a68bd1cbe7c5ca3.jpg)
Cromotor installed on frame and freewheel clearance check:
![DSC05428.jpg DSC05428.jpg](https://endless-sphere.com/sphere/data/attachments/89/89057-a7134919c285ca089ca1b4cd9f0ce01f.jpg)
Suspension and front tire installed on frame:
![DSC05438.jpg DSC05438.jpg](https://endless-sphere.com/sphere/data/attachments/89/89058-b340b62d02493eab1e5f1c81fb3630d7.jpg)
Capacity check inside the frame for all the lipo:
![DSC05418.jpg DSC05418.jpg](https://endless-sphere.com/sphere/data/attachments/89/89059-e2751b7ba2dddcc9e98d8373d20c2541.jpg)
I’m going to need some spacers to make the frame a little wider:
![DSC05420.jpg DSC05420.jpg](https://endless-sphere.com/sphere/data/attachments/89/89060-282429a20d0cd1fedd14e984096e142e.jpg)
Start drilling and routing all the wires:
View attachment 2
![DSC05442.jpg DSC05442.jpg](https://endless-sphere.com/sphere/data/attachments/89/89061-3b46fade41da5c1e65aebb1dd49b8818.jpg)
Thumb throttle for variable regenerative braking:
![DSC05440.jpg DSC05440.jpg](https://endless-sphere.com/sphere/data/attachments/89/89062-9fdbaaa8e3b17cab1cfbcb1218c2295e.jpg)