Originally Posted by
thumpism
What I remember is that when Trek made only framesets and sold bike kits to go with them they made the Ishiwata 510 sport and 530 racing, the Reynolds 710 sport and 730 racing and the Columbus 910 sport and 930 racing. Two designs in three tubesets = six variations.
It got a little more complicated as time went on! At least in the older Trek literature on Vintage-trek, they had essentially two geometries and just a few tubing choices. The second two digits were the model, and the first one was the tube maker. So a 710 could not then have been "Ishiwata or Reynolds," but a Trek Sport-Touring (x10) could be either Columbus (910), Reynolds (710), or Ishiwata (510). No such thing as an Ishiwata 710.
Yes, it's semantical, but we were asking if it is a 710. It makes and made no sense to say it's a 710 but it's Ishiwata Magny. One may imagine that Ishi frames got mis-queued and were stamped and sold as a 710, but I bet this was one of the major cases of production control failure that Trek worked to prevent - just shoving dollars out of the door. Henry Ford probably solved this problem in 1910. Again, didn't wanna shove dollars out the "ship the product" door.