I can't speak to the reliability of this info so you know, grain of salt. But my local trek dealer here in Aus told me there is something coming soon in the Fuel lineup, 120nm
I'm not sure how relevant this is but I have a Fuel EX 8 gen 6 (non-ebike) in size M/L and I installed a 210mm oneup V3 and it is *almost* slammed. The spec sheet said max 180 but the 210 fits