I have been getting chainsuck on my Mooto-X when dropping into my granny. So I put on new rings/chain/cassette and it still happened. I then added a 2mm spacer to the drive side of the bb. Problem appears to be solved. Except now I can't get my shifter to push my front der onto my large ring. If I push the front der w/ my fingers I can get the chain to engage, but the shifter won't do it. I've tried w/ an old school thumbie and a brand new SRAM Rocket trigger...I have the limit screw fully extended. Any other ideas?