How much difference does the width and profile of the front tire make to the steering of the bike? I was just talked into buying a 90/100-21 front tire (Bridgestone M403) in place of my existing 80/100-21 (Bridgestone Gritty-ED77). The store owner said that the 90/100-21 would suit my 2004 WR450 better and that the 80/100-21 was more suited to a 250cc. It's still quite muddy where I'm riding (we are just coming out of winter), hence the move to the M403 to cope with the wetter conditions. The rear has an almost new M404 110/100-18 fitted. I'm now just a little concerned that I've made the wrong decision by going for the wider profile front tire. At this point the tire is still in it's wrapping, so can be returned. Has anyone tried a similar setup?