I figured this forum would be the best place to ask this question since the folks here are knowledgeable about tubing. I have a 1986 Bridgetone MB3 that is made of straight gauge 4130 and I am thinking of turning it into a touring bike because it fits great, is really comfortable, has long chain stays, and I think suitable geometry. I assume the tubing is of fairly good quality since it is a Bridgestone. Can someone confirm if 4130 straight gauge is good tubing that would be suitable for a strong touring bike with 26" wheels? I know it might not be the lightest, but it is not extremely heavy and I will just have some additional braze-ons put on the bike by a framebuilder. I have road touring bikes, but want a more stout tourer with 26" wheels for some places. Thanks for any helpful insight you can provide me with.