I'm experiencing a reoccurring flat issue on my late 80's cannondale road touring bike. What happens is I inflate the tube to 95 psi (tire max is 100) and then soon after the bead pops over the rim and the tube usually ruptures along the seam of the tube. The first time this happened was over 24 hours after inflating the tube. Just now it happened only 45 minutes after.
I'm using a Specialized something-or-other in 27x1 1/4. My initial reaction was that the tire is too large, but 27" is actually smaller than 700mm. It seems absurd that this bike would have 650's.
If anyone can shed any light on the wheel diameters that cannondale was using back in the late 80's on the touring bike, or can think of another possible source of error, let me know.
I'm using a Specialized something-or-other in 27x1 1/4. My initial reaction was that the tire is too large, but 27" is actually smaller than 700mm. It seems absurd that this bike would have 650's.
If anyone can shed any light on the wheel diameters that cannondale was using back in the late 80's on the touring bike, or can think of another possible source of error, let me know.