I found and purchased the TKR5211 Motor Mount Insert to try and see what was going on and continue putting this awesome kit together.

I also purchased a new motor just in case. No, i am not wealthy to go buying motors on a whim to see if something works. I dug deep into the RC fund because i have been floored at how good this kit is and i am very excited to finish drained wallet or not.

I am not a mechanical engineer so i can't really give a good explanation as to why the old TKR5211 Motor Mount Insert works but the one i received TKR5211X Motor Mount Insert doesn't. The measurements you see below should not make that big of a difference but it was like i used a Traxxxas mount (If i was on URC I would be banned for saying that) before and i now have a Tekno mount. The TKR5211 Motor Mount Insert literally fell into the motor mount with both motors. Don't know don't care but hope this helps somebody and maybe Tekno to re-look at the CAD drawings, DRO calibrations or ??

TKR5211 Measurements




Hobbywing 4274SD 2200kv w/ TKR5211 Motor Mount Insert


Hobbywing 4274 G2 2250kv w/ TKR5211 Motor Mount Insert