iswara pcd is 114.3.. if buy branded oso dun worry as u jus buy betta lock nuts can d.. sum aftermarket lock nut can fetch rm200+ if u wan unique type.. harder to steal.. replica wan u need find 4 holes wan as 8 holes might give slight vibration but 4 holes for pcd 114.3 is harder to find than pcd 100.. n if u lookin for rims need to consider the offset n whether to spacer or not
check dis out for more info
WHEEL AND TYRES

From 1.3 convert to 1.6 mivec, abit hard.
From 1.3 to 1.6 mivec, it won't approve. You send to puspakom, confirm kena ban out. If really can do, runner also need around 1-2k to settle the jpj.

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Added on December 20, 2007, 12:10 pm
Why wanna convert from 4g13 to 4g15 since got other solution? You can always change your 4g13 block to 4g15. It less trouble, and more good.. 

no problem. It still have 4g15 carbie running on the street. Carbie in 4g15 is more good that fuel injection. Even I had a friend riding iswara with 4G92/91/93 (either 1, always get confuse with this 3 engine) carbie.. Nothing wrong with carbie. With carbie, you can force your engine going to the limit while EFI, what also already control by ECU..

If you convert to 4g15p, it need so many procedures and troublesome. Old engine with no problem, then doesn't mean must convert geh. If you engine old, still in good condition then just do PnP and also change block. If want more great performance, change to WEBER.

Sure got different. if what I mentioned just now, "change block" it already turn in 4g15 performance.. That mean your engine is 1500cc performance.

My friend is 4G91 carb on his iswara.