I'm running full M737 on my Zaskar now. I've fitted a 110mm BB but am getting chain suck. Something i didn't get a sniff of when it had M560 on it (and a 118mm BB). The only differance is that M737 is CD whereas the LX was 'standard', i'm wondering if my chain length is now causing the issue as chainline appears OK. How do i work out the cause? :?