Early Scotts were all fitted with beaded edge tyres. These may be fairly dangerous to use if not inflated correctly. Without sufficient air pressure the tyres will start moving on the rim, and an explosive puncture is literally just around the corner. Well-base tyres will normally stay on the rim after a puncture, but beaded edge tyres will not. They will easily end up caught between rim and fork, with dramatic results.
I recently bought a 1912 Scott combination. It is now on the operating table for some repairs and a thorough check. Will somebody with two-speeder experience(s) please offer me some tyre pressure advice? 40 lbs, 45, 50, 55, 60?
The bike has 26″ x 2 1/2″ Dunlop tyres.
My best wishes to all my SOC friends for a Merry Christmas and a happy, prosperous, eventful and challenging new year!
Although not very comfortable to ride on, the general recommended pressure is 60 psi to avoid the tyre coming off the rim. I wouldn’t run any lower than 45 psi when pottering around town etc from the comfort point of view.
Yes 60 is about the right pressure. Once on my Douglas I was using my own air compressor with an old Garage hand held unit. In a hurry I had it upside down and as it got to ’60’ it blew out with a large bang it was 90 of course…..
So you have 30 pounds of margin 🙂