DCDreamer
1 mW
I'm doing my first build using a '64 Honda Dream. Planning on using a 5kW QSmotor V4 motor (may upgrade to 6kW depending on cost). QS is rating the torque at 30-250N.m. I'm not seeing the weight of the motor/wheel on the specs I have. Going to do a 72Volt battery (should I consider 96V?).
My question is... what type of reinforcement might I need to do on the rear stays/dropouts to account for the torque and weight of the rear hub motor?
See pictures below of stays. It's my understanding that these were not super powerful bikes. The construction is pretty interesting an stamped steel and welded frame as opposed to bent tubing. The motor was apparently part of the structural makeup of the from, so I'll have to build a battery case that takes that into account. Don't think that should be a huge issue. It's the torque in the rear axel I'm concerned about,.
My question is... what type of reinforcement might I need to do on the rear stays/dropouts to account for the torque and weight of the rear hub motor?
See pictures below of stays. It's my understanding that these were not super powerful bikes. The construction is pretty interesting an stamped steel and welded frame as opposed to bent tubing. The motor was apparently part of the structural makeup of the from, so I'll have to build a battery case that takes that into account. Don't think that should be a huge issue. It's the torque in the rear axel I'm concerned about,.