Tech

By Mark Stonich Several years ago, I wrote an article about flux and lugless fillet construction for The Framebuilders Gazette. I mention “Brass” filler metal in the article, which has caused confusion for at least 2 of you. I understand that most manufacturers have since added a small amount of Tin to what had been …

Bronze Welding for Lugless Bicycle Frames Read More »

Some practical considerations for selecting tubing for a recumbent bicycle frame. By Mark Stonich In this article, I’ll be refering to 4130. This is the alloy number for commonly available Chrome-Molebdenum steel. The most likely source for this tubing is aircraft supply houses. Aircraft grade 4130 is seamless drawn and supplied Condition “N” (normalized). I …

Tubing Selection for Recumbents: Practical Read More »