We are both 184cm (6ft), so pretty tall. My road bike is a 56cm, but has a long 120mm stem. MTB is a Large Cannondale Scalpel.
The Airwolf is a Large, but I considered a medium for a long time because of the added reach of the drop bars. Eventually, I did decide to go for a Large, mainly because of the seat tube length. The medium would have A LOT of seatpost sticking out.

I then used https://bike-stats.de/en/ to determine stem length, mainly checking against my road bike fit. Settled on a 70mm stem, and looked out for the shortest reach handlebars I could find. In the end, the position is a bit longer, but higher than my road bike. Took about 5 rides to get used to.

Thanks for the advice. I’m 185cm. Probably best stick with a large. I’m uncertain about going for a drop bar or not. I might stick with narrow flat and TT bars.

Those are lovely wheels. What rim is it?

I'm also curious if the gravel derailure with the clutch works with the 2x at the front.

I’m 185 with 185 wingspan on a large with 60mm almost slammed is perfect. 170mm cranks too.

enter

Carbonda 909 and 936)

Which do you prefer?

Do I need a remote lockout?

Having read the Vitus Rapide Fs review, a stickered up FM936, on Off.Road.CC and the reviewer who I know to be a good MTB racer did comment on how active the suspension was when pedalling even with higher pressure, which I guess is why I'm deliberating so much!

I have the giant anthem fox float dps with 3 pos lockout, not remote.

I'm 70kg and I don't feel all that much bobbing out of the saddle. Even less in the trail mode. different shocks will of course react differently. I don't feel the need to reach for the trail or lockout mode except for fire road climbs or road sections.

Whew!!! All 131 pages thoroughly read! The 936 has been high on my list of potential frames, but the hardware quality has been a bit of a booger, IMO. I did some digging into the other brands using the frame and came across this on the Vitus page: https://cdn.shopify.com/s/files/1/0365/1272/7173/files/RapideFS_Metric_Spare_Parts_Kit_External.pdf?v=1630512037 It's a superb breakdown of all the pivots, hardware, bearings, everything in the 936 frames! Hopefully, it will be of use to those of us in need of replacement hardware.

Thanks for this, has anyone found where to buy replacements though?  Do I have to contact Vitus?

I won't buy a frame that doesn't have BSA / T47.  Threaded is the only way to go. 

From an engineering POV, a properly toleranced bb92/bb86 is better because it allows for a wider BB area. The issue is most manufacturers have POS QA and that causes excessive bb wear/creaking. My Carbonda fm936 has 0 bb creaks and a well-toleranced bb bore.