I hope you all can help out. I have a 1976 Schwinn Traveler with rusting rims and spokes. I'd like to keep the hubs and replace the rims. The hubs are high flange and marked "Schwinn Approved IC 76 Made in Japan".
I've used several spoke calculators, but the results are not consistant with the current setup. With the original Araya 27 1-1/4 W/O rims, high flange hubs, and 3x pattern, the calcs say I need ~297mm spokes. Measuring the spokes, they look to be ~305mm. I'm not sure what's going on with the other 8mm, so I'm coming to you for help!
I'm measuring the spoke from the inside of the elbow to the rim (where I'm guessing the spoke ends). 297mm spokes would just reach the nipples.
What the heck am I doing wrong? I've triple checked the measurements! The "Normandy High Flange" hubs found in the calculators have about the same specs as the hubs on my bike.