Originally Posted by
first trip
................................. what other than price and quality should i take into account?
That what you are getting is compatible with everything else you are getting. You shouldn't try to put a component, say a shifter made for 11 speeds with a DR or cassette/freewheel made for 7 speeds. Don't think that because I left out 8 - 10 that those are okay, because in most every case they aren't.
Like I said previously, "quality" is a broad range of considerations. Durability is a very small part of quality. Quality to some might be more concerned with weight, or smoothness and precision of movement.
............... my head quality means also durability that is where i ask you to correct my thinking of show me what else is important.
yes resitance to being banged a bit is good thing to have.
In my head, if you buy any component from Shimano, SRAM or Campagnolo they will be quality parts. They are made to do what they are designed for at their price point. Other mfrs do too, but I figure if I stick to the big names, I'll not have to worry.
What do you want? Well how many speeds is your bike? Get the components that are compatible with the existing components you are not replacing. I recommend you use the same group and series components so you'll not have any unconsidered compatibility issues crop up. So if your bike was an e-bike originally, then put on it what the designers spec'd and put on it when new. If you are making your own e-bike then good luck. I'd just get an old Yamaha trail bike and have a blast.