sorry, some r right, some goes wrong.
the wheel r not made by Mag, but just an alumi. why its so light coz its process wit very 1st in the world of 10000kg pressure of forging process, & bcos of forging, which only needs lesser amount of alumi but still can b more strenghthen if compare wit casting. thats the EvoReg.
it do crack, as any kind of wheel will crack as well... dun worry, very normal for Malaysia road... thanks to our very fucking previous Work Minister...
if wanna repair it, its really impposible to be done... wat the ppl doing here is just push the wheel to normal round shape, then have some alumi(if the shop r honest & pro) or some clay(most fucker in Kl*ng doing such thing), then just same like how the paint shop does, claying, sanding & spray the paint....
by the way, heating up the lips is just to prevent the ori paint will crack or fell out.... & "the heat will makes the lips more softer & easier to push out(thats the idiot thinking)",...
if really can heating the wheel untill b softer to push, just can put the flower on ur wheel & says bye bye... buried it... ahahahaa...

mayb i got some wrong yo, pls correct me...