Hello Iam having issue with rear tire rubbing front der on lowest gear under hard pedal (usualy steep climb). I can't adjust it more with L screw couse chain is already rubbing cage a bit. Do you know any other fix for this issue? If not my options are either maybe changing front der or tire (I would prefer staying with curent tire width). Currently I have Shimano Alivio FD-430 do you know if there is any other front der (SLX/XT) that have shorter cage but it must be 3 speed? B. R.