I found this detailed page from the third edition of the Rivendell Reader on the All-Rounder, the XO-1 successor with road geometry and cantilever mounts for 26 inch wheels. I’m now exploring building some version of this frame. For a 55.5cm frame, the measurements are as follows:
Seat angle: 72.5 degrees
Head angle: 73 degrees
Fork rake: 38 degrees
Top tube: 57.5 cm
Chainstay: 42.5 cm
BB drop: 45 mm
Over-locknut: 132 mm
TT/ ST diameter: 28.6
DT diameter: 31.8
Finding reasonable lugs that will accommodate this combination of tubes and geometry is proving to be difficult. So far I’ve found this seat lug and this for the top head lug.
If anyone has suggestions for what lugs/ tubes/ fork crown to use, feel free to chime in. I thought the geometry would be of interest to others too. As a new member I can’t attach the PDF in this post so I’ll try as a comment.
The lugs you’ve linked are for a 1 inch top tube but you way you want to build with a 28.6 top tube so they won’t work. I think given that you’re making a Ripoffvendell you should use the top tube lugs from this set. You can use this for the headtube-downtube lug and carve it to match.
Lug castings cost money so the lug makers make them in limited angles. It’s expected, as a frame maker, you will need to do some blacksmith work to make the lugs work for your frame design. Generally, you can move a lug socket a degree or two. Beyond that you’ll need to cut and reconfigure the lug. Find something that is close and then plan to ‘coerce’ it to meet your needs. It is critical that the sockets fit snug around the tube.
Alternatively, you can use 1/8" larger diameter tubes with .058" walls to make your own lugs to whatever angles you want. This results in essentially making the front of the frame twice but it’s a well traveled path. Simply select the tubing size required to make a socket for the desired tube (eg 1-1/8" .058 wall for 1" tube), miter and braze or weld it to the adjoining tube and then carve them and shape to your desire.
Here is a picture to help visualize what I’m talking about. These are ready to carve to whatever shape your imagination can come up with:
EDIT: YIKES! Not my work. This is from Kelly Bedford and was posted on PezCycling.
I edited the post. This is not my work. I found it on PezCycling and the work is from Kelly Bedford. Sorry for the confusion. I wasn’t trying to take credit! I swear!!
