GT Radial Champiro Bax 2 also have the same problem, 1 1/2 years tyre, driving around penang island...
and i asked around tyre shops in raja uda, seberang perai, bukit mertajam, georgetown, sungai dua, bayan baru, bukit jambul, all the shop owners/formen said this is tyre quality issue.
most probably due to material used in it, and its not related to brand as i saw Michelin, GY, BS, etc also got this issue...

my car also front two tyres wear out damn fast compare to rear two tyres...and my front tyres are more serious than urs, the peeling and cracked...