Look, I have no vested interest here or with Biktrix. I only mention Roshan because he’s a good reseller and adds a layer of real support.
There’s one thing I have repeated here often regarding the “plastic” gear. I bought a spare with every personal BBSxx series motor. I’m thinking 7 or 8. I sold the backup when I sold the motors. My original 2014 BBS02 gear is at the bottom of my tool box. THERE IS NO ISSUE WITH BBSHD PLASTIC GEAR. NONE! If you decide to jump on your fat bike and go snowbank riding, lowing through a foot of snow at max speed, guess what?
I help a fellow fellow that has the largest inventory online for BBSxx series motors. I can’t remember the last plastic gear replacement. I’m thinking the last sale was probably one of the pedicab customers.
Roshan who has sold hundreds of BBSHD bikes and kits can count the number of failed gears on one hand. One he did have was an traced to the lubricant breaking down the gear and softening it. As I’m writing I’m remembering the last couple od sales were riders running Ludicrous controller effectively more than doubling the OEM amps.
Sorry about the pontificating.
Either would be a good choice, forget about the plastic gear fantasy’s.