Hi all ebikes out there, need some help. Just bought the new Sram NX Eagle as an up grade for my Focus Bold2 29er which is running the 10 speed shimano xt. After being told it will all fit apart from the the crank apparently I need an XD driver so the 12 speed cassette will fit the wheel, Race Face AR30 I think. Anybody know where to buy one from or is there another brand which will fit?.. Thanks for any help or advice..