lightweight but not very affordable:

Spoon SW388*
Regamaster EVO*
Mugen MF8*
Mugen MF10*


*forged


lightweight but semi affordable:

Racing Hart CP0-35*
SSR Type C* [competition]
Advan RG*
Buddy Club P1*
Volk Racing Gram Light*
Volk Racing TE37*

*forged


lightweight affordable

Racing Kosei K1



lightweight and dirt cheap!!

Rota Attack
Rota Slipstream
Rota Circuit 8