Hub mid-drive dual motor combos

[yantra yatra]

Here’s a cheap way to double your BBS02 and BBSHD hill climbing power.
3000W Bafang BBSHD Motor Controller

Why will the 60t and 5 speed help save the hub motor from stress? And where did you get the 60t? Prob won’t fit my frames

 

[hillslayer@]

Here’s a cheap way to double your BBS02 and BBSHD hill climbing power.
3000W Bafang BBSHD Motor Controller

Why will the 60t and 5 speed help save the hub motor from stress? And where did you get the 60t? Prob won’t fit my frames

That BBSHD controller will blow at 60 amps. The thing that stresses the side cover is the leverage of running a 7 speed freewheel on the 14t cog a 5 speed places the cogs closer to the side cover lessing the leverage a 60 t chainring allows you to use the cogs even closer to the cover taking even more leverage away. AliExpress for the chainring.

 

[hillslayer@]

I am using a 50 amp FOC controller on the 1500 watt rear hub on 48 volts still. The mid -drive makes getting to 40 mph plus when using field weakening possible, something hard to normally do because while field weakening increases top end it takes away torque the mid -drive keeps the needed torque. All the comments saying my side cover can't take the torque have been proven wrong, thousands of miles of climbing most hills using max power on now 52 volts on the mid -drive.