dunno how the 140's uc plate is done, but if it's a bigger version of the 50 i'd go for a full lenght ply plate, have on my 50 after it spat out the uc plate for the second time. now it doesn't even think about ripping out..

take your uc and hold it in your fist at the top, now push on the tab where the wheels are, feel that twisting force, you plate has to cope with that. the wider the plate the more the force is spread out.

using the orginial cut outs the weight gain is hardly anything