Motorcycle Repair: Front Wobble, wobble, tyres

Question
I am getting a wobble on the front end as I hit 50+ mph, then when I hit speeds of 100+ mph the front end starts vibrating. the tyres still have plenty of tread and are not that worn.

would you have any idea what might be causing this?

Answer
Paul, could be three things and i would check in this order. need the front wheel off the gropund and spin the tire , look for a bent rim, it wont take much of the rim to make wobbles happen but i would check this. secondly i would have the tire balanced again. and after these two if it still wobbles its the tire, even tho it might have good tread its the tire. ive seen brand new tires go bad less than 500 miles.

Eric