Hey there
Newbie here. I'm looking for advice. I want to add a front hub motor to my bullitt cargo bike. I'm considering the AKM-75SX and AKM-100. Her's some considerations
I see that the AKM-75SX has a 21 reduction ratio (more torque, but also more wear and heat at 48v?) whereas the AKM-100 has a 8.2 gear ratio.
What would be the best option? I'm torn between the two. On one hand, I think that the 75SX would have more torque, but it's smaller and don't know if it'd get too hot for the weight. The AKM-100 is beefier, so probably better with the heat, but will it have enough torque on hills at lower speeds?
The alternative is a mid drive, but I have some sweet cranks and I'm not a fan of swapping those tbh.
Newbie here. I'm looking for advice. I want to add a front hub motor to my bullitt cargo bike. I'm considering the AKM-75SX and AKM-100. Her's some considerations
- The bullitt front wheel is 20"
- I mostly ride it by myself (about 110kg for me and the bike) and sometimes, but rarely with the kiddo (150kg)
- I want to stay 250W street legal and cruising at 30km/h is more than enough for me
- I live in Stockholm, which is mostly flat, but there's some rolling hills every now and then
- I want the motor to help so I don't get sweaty commuting, but I am a triathlete and want to pedal too.
I see that the AKM-75SX has a 21 reduction ratio (more torque, but also more wear and heat at 48v?) whereas the AKM-100 has a 8.2 gear ratio.
What would be the best option? I'm torn between the two. On one hand, I think that the 75SX would have more torque, but it's smaller and don't know if it'd get too hot for the weight. The AKM-100 is beefier, so probably better with the heat, but will it have enough torque on hills at lower speeds?
The alternative is a mid drive, but I have some sweet cranks and I'm not a fan of swapping those tbh.
