28" tires/wheels not 28" tires/wheels?
#1
Junior Member
Thread Starter
Join Date: Apr 2012
Location: Vancouver, BC
Posts: 8
Bikes: Leader736R, Leader516H (road conversion), Peugeot PB12, Peugeot ??, Raliegh Sprite, Norco Torrent, Norco Shore VPS, 1937 CCM
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
28" tires/wheels not 28" tires/wheels?
Hey C&V Gang,
Working on my grandfather's 1937 CCM today, trued the front wheel and started lacing the rear. Grabbed the new 28 x 1 1/2 tire and put it on the rim, hmmm this fits really loosely. Try to seat it onto the bead but no way, these new tires appear to be at least a 1/4" larger in diameter than the rim's total diameter. I look at the old tires to make sure that I didn't make a mistake, nope, 28 x 1 1/2". What gives here?
Are 28" tires and/or wheels from 75 years ago not the same diameter as they are now? Did the measuring tapes we use today grow along with our waists?
Anyone know where I can get some "28" tires for a 1937 CCM?
Any wisdom would be appreciated.
Darren
Working on my grandfather's 1937 CCM today, trued the front wheel and started lacing the rear. Grabbed the new 28 x 1 1/2 tire and put it on the rim, hmmm this fits really loosely. Try to seat it onto the bead but no way, these new tires appear to be at least a 1/4" larger in diameter than the rim's total diameter. I look at the old tires to make sure that I didn't make a mistake, nope, 28 x 1 1/2". What gives here?
Are 28" tires and/or wheels from 75 years ago not the same diameter as they are now? Did the measuring tapes we use today grow along with our waists?
Anyone know where I can get some "28" tires for a 1937 CCM?
Any wisdom would be appreciated.
Darren
#2
Senior Member
Join Date: Mar 2008
Location: Rhode Island (an obscure suburb of Connecticut)
Posts: 5,630
Bikes: one of each
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 12 Times
in
12 Posts
Here, read this and then go get some fat 700s;
https://sheldonbrown.com/tire-sizing.html
https://sheldonbrown.com/tire-sizing.html
#3
Junior Member
Thread Starter
Join Date: Apr 2012
Location: Vancouver, BC
Posts: 8
Bikes: Leader736R, Leader516H (road conversion), Peugeot PB12, Peugeot ??, Raliegh Sprite, Norco Torrent, Norco Shore VPS, 1937 CCM
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks Sailorbenjamin, I should have checked Sheldon Brown's site before asking. Will have to give that a try
Thread
Thread Starter
Forum
Replies
Last Post
MulliganAl
Classic & Vintage
38
09-01-15 11:38 PM