Perhaps this is a no-brainer for most of you, but I am new to this, so help me out!
I am designing my second frame, a commuter/tourer/cross country bike, with the following desired characteristics:
1) 450mm chainstays
2) 80mm drop
3) room for 2" tires and fenders on 700c wheels
4) a plate for a kickstand mount
4) Conforming to the following lugset and bottom bracket angles that I have:
As you can see, these have are standard road angles. The angle between the chainstays is ~7 degrees or so. I've got a frame drawn up that fits all the angles perfectly, EXCEPT the tire clearance.
Even with 450mm chainstays there is not enough room. So obviously I need to run bent chainstays, right? But this shell needs 22mm round stays, and as I see it I would need to put two bends relatively close together since I can't really change the angle of these chainstay sockets (i.e. an outward bend close to the socket followed by an inward bend further back.)
So option number 1 would be to get some plain round chainstays and bend em, but I don't think I will be able to put these bends in so close together without deforming the stays quite a bit and weakening them?
I considered grinding off the sockets on the BB shell and brazing on essentially a piece of angle iron, then brazing single bend round chainstays (which are available to buy) to that. The angle iron could serve as a kickstand plate as well (pardon my MS paint mockup):
Angle iron idea.JPG
How about Jimmy rigging some kind of other flat plate solution like this (except on both stays):
Or cutting a piece of 4 inch steel pipe and making something like this (except instead of the oval monostay I would have two very short round stays going to it):
Or something I haven't thought of?