Prolly not that much, but have you priced a set of lightweight carbon rims for a road bike?
Ho-leee fook, they are getting spendy.
Hell the tires I use are $117 each and get about 3000 miles before they are shot.
I spend more money on shooting because I can be fat and still shoot well.
Being fat on a road bike gives you extra cushion for when a dump truck runs you off the road. Less chance of a hip injury.
I'm still trying to figure out a way to bring my 22# rifle to the range on a 14.5# bike.
I love my carbon stuff, but I might have to ride my heavy-assed mountain bike because it can handle the weight of the rifle and ammo.
Actually, the worst problem is riding back home after a heavy meal of Smokin' Joe's BBQ