haha matt gms are the best plastic cored wheel for the back of your scooter.....they suck as a front wheel...well not really suck but get a yak for the front keep the gm for the back
oh. i like a new yak in the back and a gm in the front. i dont like hard wheels in the back. i like soft ones. lol. but now i use metal cores so i dont use my gm's aNd yaks so ya. lol.