tire rim combo

[nateridesbikes]

So here is the scenario...


I currently have the rear rim of my cb360 laced to the front hub for the obvious reason of running wider tires. The plan as it sits is to get another stock rear rim to keep everything even. Im looking at the vintage firestones 400-18 which I believe are the biggest tires that will fit on the stock rear rims. I stumbled upon a bike with the 450-18 and really liked the look so I'm wondering if anyone knows of any wider rims that will lace up to the hubs without having to get call crazy with buying new spokes? Also, anyone that has actually done it please chime in, I would apresh greatly.


*clifs*
wide ass rims
fat ass tires
stock spokes


....and go!

 

[Big R]

First: a 4.00 tire is probably on the edge (isn't stock 3.5"?)
Second: why Firestones? They are well known for handling like crap.
Third: google "dropbears tire wheel chart" to get an idea of sizes.

 

[nateridesbikes]

1 - From what ive gathered they should work. Maybe on the large side but I believe they should fit. Could be wrong tho.
2 - Honestly, not real worried about handling too much... Obviously I dont want it to handle like a ton of shit but the bike is being built for in town cruising not dragging knee, thats what the R6 is for.
3 roger that I will have a look


thanks!