A square taper is a std for BB's where just a BB or a mid drive, I will be using a pair of shimano cranks as the Q factor is less.
I did wonder if the high Q factor was a necessary feature, to cause more of a bend of the axle, and therefore provide more accurate torque sensing - but if Shimano cranks have worked without torque-sensing issues on the Tongsheng for others in the past, then probably not.A square taper is a std for BB's where just a BB or a mid drive, I will be using a pair of shimano cranks as the Q factor is less.
especially if their other transport is a horsethe folks with the other kits have never heard of Q factor and IMHO unless you are a purist it won't matter a damn to most folks.
After a full motor submersion incident last year (water level went over both pedals ), I'm now crazy about waterproofing every connection which has any chance of getting soggy, and would cover the heatshrink in photo 1 (under the ziptie) and the blade fuse with self-amalgamating rubber tape. My motor was fine, but now I am nuts about waterproofing... especially on the lower parts of the frame prone to splashes and immersion in sudden big deep puddles/mini-ponds following thunderstorms. I've covered all the connectors, because being rained on for four or more hours has happened quite often when I'm cycling. Maybe it's a bit OTT...And.. it appears I have to eat my words. Replacement TSDZ2 cranks arrived yesterday (remembering my originals arrived with wonky pedal holes), fitted them today and...
Bags of clearance with them torqued to 40nm, and rides perfectly.
Now I have a different dilemma.. I tried out the little one in a bike trailer the other day and realised how much less faff it'll be having them in a relatively warm weatherproof towing vehicle, plus it'll take up less space. So I bought a second hand one.. I suspect I'm going to have a comparative test ride of the route, conventional bike with trailer vs e-bike, see how painful that hill really is!
Of course I could convert one of my other bikes and tow with that... that's a thought for another day!