Help with electrifying a Taga cargo trike gen 1

[vincent]

Hoping to put a tsdz on this since my friend would like a torque drive set up
72 bottom bracket

shop feels like we don't have a lot of width in the rear tire and my friend does not love cadence sensing even turned down low
121 width on rear axle-28 spoke

waiting for pedaluma to Chime in on the tsdz possibly fitting

considered even a oneroller? kit

it has to have some kind of electric for her and she may just have to get used to a cadence set up or only use throttle

any suggestions would be great

 

[Dewey]

Sorry no the Taga trike has wide reinforcements around the bottom bracket and according to this compatibility document by David Hall from eco-cycles the tsdz2 won’t fit if there is more than 8mm wall/shell thickness around the bottom bracket. The Taga electric versions used a rear hub motor and that still looks to be the best solution, acknowledging the hub width you describe might present issues this thread on Endless-Sphere recommends using a Q100H motor and removing the locknut and 15mm spacer to convert it to a 120mm width. I don’t know if it might be possible to fit a torque sensing bottom bracket because depending on the model it might entail drilling into the reinforcement piece around the BB. Others on the forum might be able to suggest a power based (as opposed to a speed based) controller that might suffice.

 

[vincent]

Thank you! Pedaluma said he did not think the tsdz would work well either so that one is out

Good info on the torque sensing hubs, I wasn’t thinking about the fact the torque sensor itself in a hub setup might be an issue

Worst case we can do only throttle , that may be the best solution for her
Will probably set it up with a kt controller and try turning it way down and if that is not enough just use throttle