First time builder: geometry help please!
I'm planning to solder my first frame in the coming months. I have been reading extensively about it and have purchased a few good how-to books for noobies. I'm currently completing my CAD mockup for the roadbike I'd like to build but have some questions that I figured someone on the forum might be able to answer.
A few quick notes about the bike in the works:
-I'm building with lugs and will be silver soldering, so I have relatively fixed joint angles.
-I'm going to be using Llewellyn's Manorina lugset that allows for a 6* TT slope.
-I have weird proportions, with very long legs and a relatively short torso that necessitates a top tube of about 53-54 cm (depending on ST*).
So here goes:
1. Is it unreasonable to think that I can bend lugs to accommodate angles that are less than 1 degree off? For example: I need a lower HT lug with a 59.1 degree angle--it will come as purchased with a 60 degree angle.
2. The current front-center distance is 56.54 cm. This feels a bit low to me, as it seems that most road frames have around 58+ cm. Should I be concerned about this? Will the frame be unrideable with that little front-center? A little toe overlap is okay with me.
I have posted two images of the geometry sheet for the bike to be built and would love any geo input, especially regarding the two questions above.
Thanks so much!
SF Bay, California
Last edited by unterhausen; 06-24-12 at 06:06 AM.