I ride quite often and I am pretty strong, but sometimes the 12 gears seem a little limiting. I doubt I would race on this, but I would go on club rides. I'm sorry I can't bring so much detail because I really don't know what I plan on doing with the bike. I know I won't do extremely steep climbs, but I will ride distance. I think Tundra Man answered my question. I figured out the Tange 2 issue. It says in the article that only three main tubes were tange 2. So I assume that means that specific parts of the frame were Tange.... I guess, I'll still ask. Anyways, it rides very well and I'm replacing some parts that are due for replacement. I am waiting on a free wheel and a new chain and will post the picture when I have those put on.

What is an OP???

Thanks for your help everyone, Drew