Our bike came built-up so I didn't speak into the components. It is set-up with 9 speed Ultegra Flight Deck shifters, Race Face 9 speed cranks with 54-44-32 chain rings, 9 speed chain and XT rear deraileur the front deraileur is an XTR M900. Now my problem is the front shifts from the middle to the small chain ring is very iffy. It won't shift if you are in the large cog but will on the second largest if you quit pedaling and shift then lightly pedal. I thought I might just need to adjust the set screw to move the swing in some but when I started to look at the front Deraileur it looks like it is an 8 speed. So thought I'd ask the question to see what the tandem mechanics here, any thought?