Linklemming,
Alsakan has a nice set up and stable!
I did successfully kill one. It had a 50-T chainring to an 8-Speed Nexus with 16-T and I would ride it too hard and fast. It was also from a second tier supplier.
The BB needs to be milled on most aluminum bikes. Almost every bike requires shims so the motor is super tight through the bottom bracket. Otherwise there will quickly develop play. Spacers need to be exactly correct, custom. 750W with a throttle and speed sensors are not that great. Milk toast at best. I have purchased motors from second tier suppliers that were not quite right, making me think that second tier QC motors are not removed from the market but sent to discount sellers or that there are copies on the market like buying Gucci sunglasses on Albia. These ones have crappy bearings, controllers... It is almost like all the failed QC components were salvaged from the heap and assembled together off campus.
I modify the motor mounts and I use stronger and often longer bolts. Someone please unplug your speed sensor and throttle to fact check me on the enhancement to ride feel. I also ride an eBike like a bike. I ride it like a horse that I love. I use all the gears and tuck in down hills. I stand off the saddle and on ride on the pedals in the steep places for final 60 meters to a crest in low gear. It assists me. I take care of the bike and am not going to ride it until it is dead and falls over - you wouldn't do that to a horse. Some people will ride an eBike like an electric motorcycle, with a throttle, or not shifting and using the highest power level, then they can blame the bike when it dies. I play an eBike like a musical instrument with some subtly. It makes an interactive game out of the riding experience to be fully engaged.
I did buy TSDZ2 from a reputable supplier (eco-cycle). Is there a better supplier?
My TSDZ22 did have the upgraded helical spur gear.
I am also VERY meticulous in builds and mechanically competent and have been built most of my own bikes from the frameset for over 20 years.
My TSDZ2 did need a small BB spacer for chainstay clearance of around 1mm. It took me a few weeks to get my kit all buttoned up as I am very anal and meticulous in ordering or fabricating parts and wiring. The bike I put it on I have ridden for over 25 years and did have the BB faced about 10 years ago and has never had abnormal BB wear (last BB I bought in 2006 is still on the bike)
Im interested what spacer you think I seem to not be using and how/why they would cause bearing wear which has been common amongst many owners on endless-sphere and several on this forum? Isnt the BB on the TSDz2 self contained BB alignmentwise? How would 'canting' the mounting cause abnormal bearing wear with this self contained design? If thats the case wouldnt things like higher offset cranks and even less than perfect foot placement on the pedals cause issues which has never occurred on any other bike I have owned?
Im a life long cyclist and ride with the same considerations you do (most likely even more). Are you asserting that the problems I had were due to me abusing the bike? Is that the only possible reason someone might have a different TSDZ2 experience than you? If I was truly abusing my horse, wouldnt all my other 4 ebikes have similar issues...especially considering that two of these bikes are using Brose motors(11k miles combined) which many seem to think are the most unreliable around?
How would having a throttle on the bike make it worse? Perhaps you mean using a throttle? FWIW, I never installed a throttle on my TSDZ2. I also never used the brake cutouts.
I set the max speed so high via the open source software that it was not limited. I also modified the software in an attempt to make the torque sensor more responsive. In the end, the lag by the hardware low pass on the torque sensor limited what I could do in software. I also lost the speed sensor at a point and rode it like that for over a month as I use a garmin GPS speedometer and noticed no difference and left the speed sensor off till I took everything off the bike.
I have no doubt that a 350W 36V TSDZ2 would be a sweet ride for many folks. I question it being a 'factory ebike killer'
Im glad the TSDZ2 works for you. I really liked the design(much more secure mouting than BBSxx and torque sensor), especially with the opensource software. Many people love them but many people like me have problems (welll documented on endless sphere).
I considered buying another TSDZ2 at a point to have a backup, just like casinho on endless-sphere (the opensource author) does but got a good deal on my iZip Moda e3 speed pedelec.
I have also done a BBS02 back in 2018 (hated the cadence sensing, even with modded parameters) and most recently a GMAC 10t motor with torque sensor, phaserunner and CA3
I have no doubts a 36V 350W tsdz2 would be a good setup for many people but I question the claims of it being a 'factory ebike killer'
