OldskoolGrimace
100 µW
- Joined
- Mar 12, 2022
- Messages
- 7
Hey all, my first post here, just completed my first custom ebike last week and did my 40mi daily commute with it.
Gas prices being what they are, weather permitting I might be riding this a bit more often.
Frame: Micargi Bronco
Motor Kit: NBPower 5000w Fatbike Kit 26" (see Amazon)
Motor: QS205-4T hub motor.
Controller: Sabovton 72100
Batteries: 24s LiFEPo4 prismatic cells (76.8V - 25Ah) (rated continuous 3C peak 5C)
BMS: Daly 24s 100A
Fork: Himalo 34 double crown 135mm dropout (Will be replacing with an inverted fatbike fork with a 15x150mm through axle)
Front Brake: Shimano Saint Hydraulic Double Pot, Magura MDS 203mm disc
Rear Brake: TRP Spyke Cable, Magura MDS 203mm disc (lookign to enable regen braking soon.)
Seat: Brooks B67. (looks cool, but want to replace with something softer and with a back)
Length: 92"
Weight: 130lbs
Electronics frame housing: cut out of 1/8" aluminum
Here's the internal mounting of the batteries. It just about fits. The mounts for the 100A switches are 3D printed, switches
just bolt into the frame. I also 3D printed covers for the battery bus bars and routing for the 25 wires back to the BMS.
My first motor test attempt resulted in the original dropouts being bent and the wheel tearing off the bike under power.
I decided to design and have cut some custom torque arms in 1/2 thick stainless and bold them to the frame. They have the added plus of integrated disc brake mounts. I designed the outline in inkscape, exported to DXF and uploaded to Xometry to have them manufature it. Expensive, but in the end a result I'm happy with.
Gas prices being what they are, weather permitting I might be riding this a bit more often.
Frame: Micargi Bronco
Motor Kit: NBPower 5000w Fatbike Kit 26" (see Amazon)
Motor: QS205-4T hub motor.
Controller: Sabovton 72100
Batteries: 24s LiFEPo4 prismatic cells (76.8V - 25Ah) (rated continuous 3C peak 5C)
BMS: Daly 24s 100A
Fork: Himalo 34 double crown 135mm dropout (Will be replacing with an inverted fatbike fork with a 15x150mm through axle)
Front Brake: Shimano Saint Hydraulic Double Pot, Magura MDS 203mm disc
Rear Brake: TRP Spyke Cable, Magura MDS 203mm disc (lookign to enable regen braking soon.)
Seat: Brooks B67. (looks cool, but want to replace with something softer and with a back)
Length: 92"
Weight: 130lbs
Electronics frame housing: cut out of 1/8" aluminum
Here's the internal mounting of the batteries. It just about fits. The mounts for the 100A switches are 3D printed, switches
just bolt into the frame. I also 3D printed covers for the battery bus bars and routing for the 25 wires back to the BMS.
My first motor test attempt resulted in the original dropouts being bent and the wheel tearing off the bike under power.
I decided to design and have cut some custom torque arms in 1/2 thick stainless and bold them to the frame. They have the added plus of integrated disc brake mounts. I designed the outline in inkscape, exported to DXF and uploaded to Xometry to have them manufature it. Expensive, but in the end a result I'm happy with.