The bike will be fine. But, understand that a modern bike will offer a few more conveniences, namely:
- A standard steerer tube that uses standard stems. This makes for easy stem and bar changes when you need to adjust.
- Clincher tires for easy changes after flatting. Tubulars feel great, but are expensive and take at least 24 hrs for the glue to cure. Longer if you have to wait for a shop to do it for you.
You may have little issues like:
- Your seatpost may not be 27.2mm.
- Your saddle rails may be more narrow than standard.
- You can't just go down to the local shop and get 25.4mm bars, quill stems, and whatnot.
- Unless specifically built to be really stiff, it may not be. Steel can be stiff or noodly depending on the tubing and design. (I have a steel frame).
There are other small nagging issues that come with riding a vintage bike. It's a lot like having a vintage car. Modern cars really are better. Modern cars did keep the best parts of the older cars and left the other stuff. A vintage car has all of the other stuff and none of the modern stuff. So, if you are OK with that, then cool. But, NJS bikes are rare at local tracks for a reason...and it's not because they are difficult to obtain
