I/S front speakers

[Mr.BubblesVRCCDS0008]

I know the front speakers are 4 and a half in and the rear are 4in. Will the front speakers for a goldwing 1500 fit in the front, J&M has some for 69. bucks and I have a gift certifate to HDL that is burning a hole in my pocket. These are 3ohm and 100watt speakers. I'll do the polk speakers in the rear at a later date.